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Finding the Fourth Proportional to 10,125.90, 15,094.98 and 9,965.97

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Solution

The fourth proportional to 10,125.90, 15,094.98 and 9,965.97 is: 14,856.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,125.90 : 15,094.98 = 9,965.97 : x
  2. Step 2: Convert to fraction form
    10,125.90/15,094.98 = 9,965.97/x
  3. Step 3: Cross multiply
    10,125.90x = 15,094.98 × 9,965.97
  4. Step 4: Simplify right side
    10,125.90x = 150,436,117.83
  5. Step 5: Solve for x
    x = 150,436,117.83/10,125.90
  6. Step 6: Final answer
    x = 14,856.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.