Home / 15,677.13-23,516.91-3,990.25

Finding the Fourth Proportional to 15,677.13, 23,516.91 and 3,990.25

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Solution

The fourth proportional to 15,677.13, 23,516.91 and 3,990.25 is: 5,985.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,677.13 : 23,516.91 = 3,990.25 : x
  2. Step 2: Convert to fraction form
    15,677.13/23,516.91 = 3,990.25/x
  3. Step 3: Cross multiply
    15,677.13x = 23,516.91 × 3,990.25
  4. Step 4: Simplify right side
    15,677.13x = 93,838,350.13
  5. Step 5: Solve for x
    x = 93,838,350.13/15,677.13
  6. Step 6: Final answer
    x = 5,985.68

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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.