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Finding the Fourth Proportional to 9,947.80, 14,900.10 and 8,853.40

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Solution

The fourth proportional to 9,947.80, 14,900.10 and 8,853.40 is: 13,260.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,947.80 : 14,900.10 = 8,853.40 : x
  2. Step 2: Convert to fraction form
    9,947.80/14,900.10 = 8,853.40/x
  3. Step 3: Cross multiply
    9,947.80x = 14,900.10 × 8,853.40
  4. Step 4: Simplify right side
    9,947.80x = 131,916,545.34
  5. Step 5: Solve for x
    x = 131,916,545.34/9,947.80
  6. Step 6: Final answer
    x = 13,260.88

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1.5x scale

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.