Home / 25,515.56-38,280.60-9,937.64

Finding the Fourth Proportional to 25,515.56, 38,280.60 and 9,937.64

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Solution

The fourth proportional to 25,515.56, 38,280.60 and 9,937.64 is: 14,909.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,515.56 : 38,280.60 = 9,937.64 : x
  2. Step 2: Convert to fraction form
    25,515.56/38,280.60 = 9,937.64/x
  3. Step 3: Cross multiply
    25,515.56x = 38,280.60 × 9,937.64
  4. Step 4: Simplify right side
    25,515.56x = 380,418,821.78
  5. Step 5: Solve for x
    x = 380,418,821.78/25,515.56
  6. Step 6: Final answer
    x = 14,909.29

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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.