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Finding the Fourth Proportional to 9,062.40, 12,502.80 and 5,923.20

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Solution

The fourth proportional to 9,062.40, 12,502.80 and 5,923.20 is: 8,171.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,062.40 : 12,502.80 = 5,923.20 : x
  2. Step 2: Convert to fraction form
    9,062.40/12,502.80 = 5,923.20/x
  3. Step 3: Cross multiply
    9,062.40x = 12,502.80 × 5,923.20
  4. Step 4: Simplify right side
    9,062.40x = 74,056,584.96
  5. Step 5: Solve for x
    x = 74,056,584.96/9,062.40
  6. Step 6: Final answer
    x = 8,171.85

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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.