Home / 15,874.80-23,812.68-4,781.57

Finding the Fourth Proportional to 15,874.80, 23,812.68 and 4,781.57

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Solution

The fourth proportional to 15,874.80, 23,812.68 and 4,781.57 is: 7,172.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,874.80 : 23,812.68 = 4,781.57 : x
  2. Step 2: Convert to fraction form
    15,874.80/23,812.68 = 4,781.57/x
  3. Step 3: Cross multiply
    15,874.80x = 23,812.68 × 4,781.57
  4. Step 4: Simplify right side
    15,874.80x = 113,861,895.18
  5. Step 5: Solve for x
    x = 113,861,895.18/15,874.80
  6. Step 6: Final answer
    x = 7,172.49

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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.