Home / 11,693.38-16,135.81-7,218.58

Finding the Fourth Proportional to 11,693.38, 16,135.81 and 7,218.58

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Solution

The fourth proportional to 11,693.38, 16,135.81 and 7,218.58 is: 9,960.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,693.38 : 16,135.81 = 7,218.58 : x
  2. Step 2: Convert to fraction form
    11,693.38/16,135.81 = 7,218.58/x
  3. Step 3: Cross multiply
    11,693.38x = 16,135.81 × 7,218.58
  4. Step 4: Simplify right side
    11,693.38x = 116,477,635.35
  5. Step 5: Solve for x
    x = 116,477,635.35/11,693.38
  6. Step 6: Final answer
    x = 9,960.99

Related Problems

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Half scale
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Double scale
Find fourth proportional to 11,694.38, 16,137.19 and 7,219.58
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.