Home / 9,231.48-12,740.65-5,251.82

Finding the Fourth Proportional to 9,231.48, 12,740.65 and 5,251.82

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Solution

The fourth proportional to 9,231.48, 12,740.65 and 5,251.82 is: 7,248.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,231.48 : 12,740.65 = 5,251.82 : x
  2. Step 2: Convert to fraction form
    9,231.48/12,740.65 = 5,251.82/x
  3. Step 3: Cross multiply
    9,231.48x = 12,740.65 × 5,251.82
  4. Step 4: Simplify right side
    9,231.48x = 66,911,600.48
  5. Step 5: Solve for x
    x = 66,911,600.48/9,231.48
  6. Step 6: Final answer
    x = 7,248.20

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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.