Home / 10,142.92-13,995.85-5,666.12

Finding the Fourth Proportional to 10,142.92, 13,995.85 and 5,666.12

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Solution

The fourth proportional to 10,142.92, 13,995.85 and 5,666.12 is: 7,818.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,142.92 : 13,995.85 = 5,666.12 : x
  2. Step 2: Convert to fraction form
    10,142.92/13,995.85 = 5,666.12/x
  3. Step 3: Cross multiply
    10,142.92x = 13,995.85 × 5,666.12
  4. Step 4: Simplify right side
    10,142.92x = 79,302,165.60
  5. Step 5: Solve for x
    x = 79,302,165.60/10,142.92
  6. Step 6: Final answer
    x = 7,818.47

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.