Home / 15,680.16-21,638.22-8,606.52

Finding the Fourth Proportional to 15,680.16, 21,638.22 and 8,606.52

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Solution

The fourth proportional to 15,680.16, 21,638.22 and 8,606.52 is: 11,876.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,680.16 : 21,638.22 = 8,606.52 : x
  2. Step 2: Convert to fraction form
    15,680.16/21,638.22 = 8,606.52/x
  3. Step 3: Cross multiply
    15,680.16x = 21,638.22 × 8,606.52
  4. Step 4: Simplify right side
    15,680.16x = 186,229,773.19
  5. Step 5: Solve for x
    x = 186,229,773.19/15,680.16
  6. Step 6: Final answer
    x = 11,876.78

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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.