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Finding the Fourth Proportional to 17,656.80, 26,479.04 and 8,301.21

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Solution

The fourth proportional to 17,656.80, 26,479.04 and 8,301.21 is: 12,448.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,656.80 : 26,479.04 = 8,301.21 : x
  2. Step 2: Convert to fraction form
    17,656.80/26,479.04 = 8,301.21/x
  3. Step 3: Cross multiply
    17,656.80x = 26,479.04 × 8,301.21
  4. Step 4: Simplify right side
    17,656.80x = 219,808,030.13
  5. Step 5: Solve for x
    x = 219,808,030.13/17,656.80
  6. Step 6: Final answer
    x = 12,448.92

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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.