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Finding the Fourth Proportional to 9,060, 12,502.82 and 5,285.76

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Solution

The fourth proportional to 9,060, 12,502.82 and 5,285.76 is: 7,294.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,060 : 12,502.82 = 5,285.76 : x
  2. Step 2: Convert to fraction form
    9,060/12,502.82 = 5,285.76/x
  3. Step 3: Cross multiply
    9,060x = 12,502.82 × 5,285.76
  4. Step 4: Simplify right side
    9,060x = 66,086,919.06
  5. Step 5: Solve for x
    x = 66,086,919.06/9,060
  6. Step 6: Final answer
    x = 7,294.36

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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.