Home / 10,487.07-15,737.88-6,780.11

Finding the Fourth Proportional to 10,487.07, 15,737.88 and 6,780.11

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Solution

The fourth proportional to 10,487.07, 15,737.88 and 6,780.11 is: 10,174.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,487.07 : 15,737.88 = 6,780.11 : x
  2. Step 2: Convert to fraction form
    10,487.07/15,737.88 = 6,780.11/x
  3. Step 3: Cross multiply
    10,487.07x = 15,737.88 × 6,780.11
  4. Step 4: Simplify right side
    10,487.07x = 106,704,478.88
  5. Step 5: Solve for x
    x = 106,704,478.88/10,487.07
  6. Step 6: Final answer
    x = 10,174.86

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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.