Home / 15,707.46-21,676.23-8,634.18

Finding the Fourth Proportional to 15,707.46, 21,676.23 and 8,634.18

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Solution

The fourth proportional to 15,707.46, 21,676.23 and 8,634.18 is: 11,915.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,707.46 : 21,676.23 = 8,634.18 : x
  2. Step 2: Convert to fraction form
    15,707.46/21,676.23 = 8,634.18/x
  3. Step 3: Cross multiply
    15,707.46x = 21,676.23 × 8,634.18
  4. Step 4: Simplify right side
    15,707.46x = 187,156,471.54
  5. Step 5: Solve for x
    x = 187,156,471.54/15,707.46
  6. Step 6: Final answer
    x = 11,915.13

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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.