Home / 14,569.97-20,106.29-8,520.78

Finding the Fourth Proportional to 14,569.97, 20,106.29 and 8,520.78

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Solution

The fourth proportional to 14,569.97, 20,106.29 and 8,520.78 is: 11,758.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,569.97 : 20,106.29 = 8,520.78 : x
  2. Step 2: Convert to fraction form
    14,569.97/20,106.29 = 8,520.78/x
  3. Step 3: Cross multiply
    14,569.97x = 20,106.29 × 8,520.78
  4. Step 4: Simplify right side
    14,569.97x = 171,321,273.71
  5. Step 5: Solve for x
    x = 171,321,273.71/14,569.97
  6. Step 6: Final answer
    x = 11,758.52

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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.