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Finding the Fourth Proportional to 13,036.92, 17,984.32 and 8,248.79

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Solution

The fourth proportional to 13,036.92, 17,984.32 and 8,248.79 is: 11,379.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,036.92 : 17,984.32 = 8,248.79 : x
  2. Step 2: Convert to fraction form
    13,036.92/17,984.32 = 8,248.79/x
  3. Step 3: Cross multiply
    13,036.92x = 17,984.32 × 8,248.79
  4. Step 4: Simplify right side
    13,036.92x = 148,348,825.35
  5. Step 5: Solve for x
    x = 148,348,825.35/13,036.92
  6. Step 6: Final answer
    x = 11,379.13

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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.