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Finding the Fourth Proportional to 9,888.32, 14,901.28 and 8,951.56

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Solution

The fourth proportional to 9,888.32, 14,901.28 and 8,951.56 is: 13,489.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,888.32 : 14,901.28 = 8,951.56 : x
  2. Step 2: Convert to fraction form
    9,888.32/14,901.28 = 8,951.56/x
  3. Step 3: Cross multiply
    9,888.32x = 14,901.28 × 8,951.56
  4. Step 4: Simplify right side
    9,888.32x = 133,389,642.36
  5. Step 5: Solve for x
    x = 133,389,642.36/9,888.32
  6. Step 6: Final answer
    x = 13,489.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.