Home / 10,142.19-13,996.25-5,666.11

Finding the Fourth Proportional to 10,142.19, 13,996.25 and 5,666.11

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Solution

The fourth proportional to 10,142.19, 13,996.25 and 5,666.11 is: 7,819.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,142.19 : 13,996.25 = 5,666.11 : x
  2. Step 2: Convert to fraction form
    10,142.19/13,996.25 = 5,666.11/x
  3. Step 3: Cross multiply
    10,142.19x = 13,996.25 × 5,666.11
  4. Step 4: Simplify right side
    10,142.19x = 79,304,292.09
  5. Step 5: Solve for x
    x = 79,304,292.09/10,142.19
  6. Step 6: Final answer
    x = 7,819.25

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Half scale
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Double scale
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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.