Home / 14,979.42-20,671.76-8,265.28

Finding the Fourth Proportional to 14,979.42, 20,671.76 and 8,265.28

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Solution

The fourth proportional to 14,979.42, 20,671.76 and 8,265.28 is: 11,406.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,979.42 : 20,671.76 = 8,265.28 : x
  2. Step 2: Convert to fraction form
    14,979.42/20,671.76 = 8,265.28/x
  3. Step 3: Cross multiply
    14,979.42x = 20,671.76 × 8,265.28
  4. Step 4: Simplify right side
    14,979.42x = 170,857,884.49
  5. Step 5: Solve for x
    x = 170,857,884.49/14,979.42
  6. Step 6: Final answer
    x = 11,406.17

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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.