Home / 8,231.12-11,359.20-4,646.13

Finding the Fourth Proportional to 8,231.12, 11,359.20 and 4,646.13

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Solution

The fourth proportional to 8,231.12, 11,359.20 and 4,646.13 is: 6,411.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231.12 : 11,359.20 = 4,646.13 : x
  2. Step 2: Convert to fraction form
    8,231.12/11,359.20 = 4,646.13/x
  3. Step 3: Cross multiply
    8,231.12x = 11,359.20 × 4,646.13
  4. Step 4: Simplify right side
    8,231.12x = 52,776,319.90
  5. Step 5: Solve for x
    x = 52,776,319.90/8,231.12
  6. Step 6: Final answer
    x = 6,411.80

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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.