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Finding the Fourth Proportional to 17,914.23, 26,871.35 and 8,686.71

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Solution

The fourth proportional to 17,914.23, 26,871.35 and 8,686.71 is: 13,030.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,914.23 : 26,871.35 = 8,686.71 : x
  2. Step 2: Convert to fraction form
    17,914.23/26,871.35 = 8,686.71/x
  3. Step 3: Cross multiply
    17,914.23x = 26,871.35 × 8,686.71
  4. Step 4: Simplify right side
    17,914.23x = 233,423,581.32
  5. Step 5: Solve for x
    x = 233,423,581.32/17,914.23
  6. Step 6: Final answer
    x = 13,030.07

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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.