Home / 14,776.26-20,390.60-8,061.78

Finding the Fourth Proportional to 14,776.26, 20,390.60 and 8,061.78

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Solution

The fourth proportional to 14,776.26, 20,390.60 and 8,061.78 is: 11,124.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,776.26 : 20,390.60 = 8,061.78 : x
  2. Step 2: Convert to fraction form
    14,776.26/20,390.60 = 8,061.78/x
  3. Step 3: Cross multiply
    14,776.26x = 20,390.60 × 8,061.78
  4. Step 4: Simplify right side
    14,776.26x = 164,384,531.27
  5. Step 5: Solve for x
    x = 164,384,531.27/14,776.26
  6. Step 6: Final answer
    x = 11,124.91

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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.