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Finding the Fourth Proportional to 17,904.56, 26,857.20 and 8,545.68

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Solution

The fourth proportional to 17,904.56, 26,857.20 and 8,545.68 is: 12,818.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,904.56 : 26,857.20 = 8,545.68 : x
  2. Step 2: Convert to fraction form
    17,904.56/26,857.20 = 8,545.68/x
  3. Step 3: Cross multiply
    17,904.56x = 26,857.20 × 8,545.68
  4. Step 4: Simplify right side
    17,904.56x = 229,513,036.90
  5. Step 5: Solve for x
    x = 229,513,036.90/17,904.56
  6. Step 6: Final answer
    x = 12,818.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.