Home / 15,754.91-23,635.40-6,989.90

Finding the Fourth Proportional to 15,754.91, 23,635.40 and 6,989.90

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Solution

The fourth proportional to 15,754.91, 23,635.40 and 6,989.90 is: 10,486.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,754.91 : 23,635.40 = 6,989.90 : x
  2. Step 2: Convert to fraction form
    15,754.91/23,635.40 = 6,989.90/x
  3. Step 3: Cross multiply
    15,754.91x = 23,635.40 × 6,989.90
  4. Step 4: Simplify right side
    15,754.91x = 165,208,929.33
  5. Step 5: Solve for x
    x = 165,208,929.33/15,754.91
  6. Step 6: Final answer
    x = 10,486.19

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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.