Home / 14,766.28-20,379.30-8,478.52

Finding the Fourth Proportional to 14,766.28, 20,379.30 and 8,478.52

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Solution

The fourth proportional to 14,766.28, 20,379.30 and 8,478.52 is: 11,701.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,766.28 : 20,379.30 = 8,478.52 : x
  2. Step 2: Convert to fraction form
    14,766.28/20,379.30 = 8,478.52/x
  3. Step 3: Cross multiply
    14,766.28x = 20,379.30 × 8,478.52
  4. Step 4: Simplify right side
    14,766.28x = 172,786,302.64
  5. Step 5: Solve for x
    x = 172,786,302.64/14,766.28
  6. Step 6: Final answer
    x = 11,701.41

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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.