Home / 15,346.20-21,175.16-9,059.78

Finding the Fourth Proportional to 15,346.20, 21,175.16 and 9,059.78

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Solution

The fourth proportional to 15,346.20, 21,175.16 and 9,059.78 is: 12,500.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,346.20 : 21,175.16 = 9,059.78 : x
  2. Step 2: Convert to fraction form
    15,346.20/21,175.16 = 9,059.78/x
  3. Step 3: Cross multiply
    15,346.20x = 21,175.16 × 9,059.78
  4. Step 4: Simplify right side
    15,346.20x = 191,842,291.06
  5. Step 5: Solve for x
    x = 191,842,291.06/15,346.20
  6. Step 6: Final answer
    x = 12,500.96

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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.