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Finding the Fourth Proportional to 12,959, 17,886.66 and 7,373.24

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Solution

The fourth proportional to 12,959, 17,886.66 and 7,373.24 is: 10,176.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,959 : 17,886.66 = 7,373.24 : x
  2. Step 2: Convert to fraction form
    12,959/17,886.66 = 7,373.24/x
  3. Step 3: Cross multiply
    12,959x = 17,886.66 × 7,373.24
  4. Step 4: Simplify right side
    12,959x = 131,882,636.98
  5. Step 5: Solve for x
    x = 131,882,636.98/12,959
  6. Step 6: Final answer
    x = 10,176.91

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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.