Home / 10,142.34-13,996.97-5,666.19

Finding the Fourth Proportional to 10,142.34, 13,996.97 and 5,666.19

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Solution

The fourth proportional to 10,142.34, 13,996.97 and 5,666.19 is: 7,819.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,142.34 : 13,996.97 = 5,666.19 : x
  2. Step 2: Convert to fraction form
    10,142.34/13,996.97 = 5,666.19/x
  3. Step 3: Cross multiply
    10,142.34x = 13,996.97 × 5,666.19
  4. Step 4: Simplify right side
    10,142.34x = 79,309,491.44
  5. Step 5: Solve for x
    x = 79,309,491.44/10,142.34
  6. Step 6: Final answer
    x = 7,819.64

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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.