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Finding the Fourth Proportional to 13,019.64, 17,962.32 and 8,545.92

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Solution

The fourth proportional to 13,019.64, 17,962.32 and 8,545.92 is: 11,790.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,019.64 : 17,962.32 = 8,545.92 : x
  2. Step 2: Convert to fraction form
    13,019.64/17,962.32 = 8,545.92/x
  3. Step 3: Cross multiply
    13,019.64x = 17,962.32 × 8,545.92
  4. Step 4: Simplify right side
    13,019.64x = 153,504,549.73
  5. Step 5: Solve for x
    x = 153,504,549.73/13,019.64
  6. Step 6: Final answer
    x = 11,790.23

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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.