Home / 15,346.20-23,019.30-9,109.20

Finding the Fourth Proportional to 15,346.20, 23,019.30 and 9,109.20

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Solution

The fourth proportional to 15,346.20, 23,019.30 and 9,109.20 is: 13,663.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,346.20 : 23,019.30 = 9,109.20 : x
  2. Step 2: Convert to fraction form
    15,346.20/23,019.30 = 9,109.20/x
  3. Step 3: Cross multiply
    15,346.20x = 23,019.30 × 9,109.20
  4. Step 4: Simplify right side
    15,346.20x = 209,687,407.56
  5. Step 5: Solve for x
    x = 209,687,407.56/15,346.20
  6. Step 6: Final answer
    x = 13,663.80

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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.