Home / 14,125.75-21,188.78-4,265.12

Finding the Fourth Proportional to 14,125.75, 21,188.78 and 4,265.12

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Solution

The fourth proportional to 14,125.75, 21,188.78 and 4,265.12 is: 6,397.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,125.75 : 21,188.78 = 4,265.12 : x
  2. Step 2: Convert to fraction form
    14,125.75/21,188.78 = 4,265.12/x
  3. Step 3: Cross multiply
    14,125.75x = 21,188.78 × 4,265.12
  4. Step 4: Simplify right side
    14,125.75x = 90,372,689.35
  5. Step 5: Solve for x
    x = 90,372,689.35/14,125.75
  6. Step 6: Final answer
    x = 6,397.73

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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.