Home / 15,800.40-23,685.84-7,898.04

Finding the Fourth Proportional to 15,800.40, 23,685.84 and 7,898.04

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Solution

The fourth proportional to 15,800.40, 23,685.84 and 7,898.04 is: 11,839.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,800.40 : 23,685.84 = 7,898.04 : x
  2. Step 2: Convert to fraction form
    15,800.40/23,685.84 = 7,898.04/x
  3. Step 3: Cross multiply
    15,800.40x = 23,685.84 × 7,898.04
  4. Step 4: Simplify right side
    15,800.40x = 187,071,711.75
  5. Step 5: Solve for x
    x = 187,071,711.75/15,800.40
  6. Step 6: Final answer
    x = 11,839.68

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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.