Home / 15,717.72-23,555.10-8,687.32

Finding the Fourth Proportional to 15,717.72, 23,555.10 and 8,687.32

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Solution

The fourth proportional to 15,717.72, 23,555.10 and 8,687.32 is: 13,019.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,717.72 : 23,555.10 = 8,687.32 : x
  2. Step 2: Convert to fraction form
    15,717.72/23,555.10 = 8,687.32/x
  3. Step 3: Cross multiply
    15,717.72x = 23,555.10 × 8,687.32
  4. Step 4: Simplify right side
    15,717.72x = 204,630,691.33
  5. Step 5: Solve for x
    x = 204,630,691.33/15,717.72
  6. Step 6: Final answer
    x = 13,019.11

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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.