Home / 10,534.04-15,801.05-3,138.30

Finding the Fourth Proportional to 10,534.04, 15,801.05 and 3,138.30

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Solution

The fourth proportional to 10,534.04, 15,801.05 and 3,138.30 is: 4,707.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,534.04 : 15,801.05 = 3,138.30 : x
  2. Step 2: Convert to fraction form
    10,534.04/15,801.05 = 3,138.30/x
  3. Step 3: Cross multiply
    10,534.04x = 15,801.05 × 3,138.30
  4. Step 4: Simplify right side
    10,534.04x = 49,588,419.52
  5. Step 5: Solve for x
    x = 49,588,419.52/10,534.04
  6. Step 6: Final answer
    x = 4,707.45

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