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Finding the Fourth Proportional to 14,979.16, 20,671.02 and 8,265.46

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Solution

The fourth proportional to 14,979.16, 20,671.02 and 8,265.46 is: 11,406.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,979.16 : 20,671.02 = 8,265.46 : x
  2. Step 2: Convert to fraction form
    14,979.16/20,671.02 = 8,265.46/x
  3. Step 3: Cross multiply
    14,979.16x = 20,671.02 × 8,265.46
  4. Step 4: Simplify right side
    14,979.16x = 170,855,488.97
  5. Step 5: Solve for x
    x = 170,855,488.97/14,979.16
  6. Step 6: Final answer
    x = 11,406.21

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1.5x scale

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.