Home / 8,330.22-11,499.40-6,340.86

Finding the Fourth Proportional to 8,330.22, 11,499.40 and 6,340.86

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Solution

The fourth proportional to 8,330.22, 11,499.40 and 6,340.86 is: 8,753.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,330.22 : 11,499.40 = 6,340.86 : x
  2. Step 2: Convert to fraction form
    8,330.22/11,499.40 = 6,340.86/x
  3. Step 3: Cross multiply
    8,330.22x = 11,499.40 × 6,340.86
  4. Step 4: Simplify right side
    8,330.22x = 72,916,012.13
  5. Step 5: Solve for x
    x = 72,916,012.13/8,330.22
  6. Step 6: Final answer
    x = 8,753.20

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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.