Home / 15,740.11-23,611.18-5,209.71

Finding the Fourth Proportional to 15,740.11, 23,611.18 and 5,209.71

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Solution

The fourth proportional to 15,740.11, 23,611.18 and 5,209.71 is: 7,814.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,740.11 : 23,611.18 = 5,209.71 : x
  2. Step 2: Convert to fraction form
    15,740.11/23,611.18 = 5,209.71/x
  3. Step 3: Cross multiply
    15,740.11x = 23,611.18 × 5,209.71
  4. Step 4: Simplify right side
    15,740.11x = 123,007,400.56
  5. Step 5: Solve for x
    x = 123,007,400.56/15,740.11
  6. Step 6: Final answer
    x = 7,814.90

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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.