Home / 10,901.40-16,352.10-5,980.80

Finding the Fourth Proportional to 10,901.40, 16,352.10 and 5,980.80

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Solution

The fourth proportional to 10,901.40, 16,352.10 and 5,980.80 is: 8,971.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,901.40 : 16,352.10 = 5,980.80 : x
  2. Step 2: Convert to fraction form
    10,901.40/16,352.10 = 5,980.80/x
  3. Step 3: Cross multiply
    10,901.40x = 16,352.10 × 5,980.80
  4. Step 4: Simplify right side
    10,901.40x = 97,798,639.68
  5. Step 5: Solve for x
    x = 97,798,639.68/10,901.40
  6. Step 6: Final answer
    x = 8,971.20

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.