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Finding the Fourth Proportional to 12,567, 18,859.14 and 4,359

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Solution

The fourth proportional to 12,567, 18,859.14 and 4,359 is: 6,541.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,567 : 18,859.14 = 4,359 : x
  2. Step 2: Convert to fraction form
    12,567/18,859.14 = 4,359/x
  3. Step 3: Cross multiply
    12,567x = 18,859.14 × 4,359
  4. Step 4: Simplify right side
    12,567x = 82,206,991.26
  5. Step 5: Solve for x
    x = 82,206,991.26/12,567
  6. Step 6: Final answer
    x = 6,541.50

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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.