Home / 9,129.85-12,599.27-5,041.78

Finding the Fourth Proportional to 9,129.85, 12,599.27 and 5,041.78

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Solution

The fourth proportional to 9,129.85, 12,599.27 and 5,041.78 is: 6,957.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129.85 : 12,599.27 = 5,041.78 : x
  2. Step 2: Convert to fraction form
    9,129.85/12,599.27 = 5,041.78/x
  3. Step 3: Cross multiply
    9,129.85x = 12,599.27 × 5,041.78
  4. Step 4: Simplify right side
    9,129.85x = 63,522,747.50
  5. Step 5: Solve for x
    x = 63,522,747.50/9,129.85
  6. Step 6: Final answer
    x = 6,957.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.