Home / 8,861.47-12,216.58-6,339.17

Finding the Fourth Proportional to 8,861.47, 12,216.58 and 6,339.17

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Solution

The fourth proportional to 8,861.47, 12,216.58 and 6,339.17 is: 8,739.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,861.47 : 12,216.58 = 6,339.17 : x
  2. Step 2: Convert to fraction form
    8,861.47/12,216.58 = 6,339.17/x
  3. Step 3: Cross multiply
    8,861.47x = 12,216.58 × 6,339.17
  4. Step 4: Simplify right side
    8,861.47x = 77,442,992.13
  5. Step 5: Solve for x
    x = 77,442,992.13/8,861.47
  6. Step 6: Final answer
    x = 8,739.30

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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.