Home / 15,785.66-23,649.76-9,191.86

Finding the Fourth Proportional to 15,785.66, 23,649.76 and 9,191.86

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Solution

The fourth proportional to 15,785.66, 23,649.76 and 9,191.86 is: 13,771.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,785.66 : 23,649.76 = 9,191.86 : x
  2. Step 2: Convert to fraction form
    15,785.66/23,649.76 = 9,191.86/x
  3. Step 3: Cross multiply
    15,785.66x = 23,649.76 × 9,191.86
  4. Step 4: Simplify right side
    15,785.66x = 217,385,200.85
  5. Step 5: Solve for x
    x = 217,385,200.85/15,785.66
  6. Step 6: Final answer
    x = 13,771.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.