Home / 15,342.38-21,173.25-8,630.12

Finding the Fourth Proportional to 15,342.38, 21,173.25 and 8,630.12

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Solution

The fourth proportional to 15,342.38, 21,173.25 and 8,630.12 is: 11,910.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,342.38 : 21,173.25 = 8,630.12 : x
  2. Step 2: Convert to fraction form
    15,342.38/21,173.25 = 8,630.12/x
  3. Step 3: Cross multiply
    15,342.38x = 21,173.25 × 8,630.12
  4. Step 4: Simplify right side
    15,342.38x = 182,727,688.29
  5. Step 5: Solve for x
    x = 182,727,688.29/15,342.38
  6. Step 6: Final answer
    x = 11,910.00

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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.