Home / 10,521.66-15,780.62-3,500.98

Finding the Fourth Proportional to 10,521.66, 15,780.62 and 3,500.98

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Solution

The fourth proportional to 10,521.66, 15,780.62 and 3,500.98 is: 5,250.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,521.66 : 15,780.62 = 3,500.98 : x
  2. Step 2: Convert to fraction form
    10,521.66/15,780.62 = 3,500.98/x
  3. Step 3: Cross multiply
    10,521.66x = 15,780.62 × 3,500.98
  4. Step 4: Simplify right side
    10,521.66x = 55,247,635.01
  5. Step 5: Solve for x
    x = 55,247,635.01/10,521.66
  6. Step 6: Final answer
    x = 5,250.85

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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.