Home / 8,964.88-12,371.87-4,931.86

Finding the Fourth Proportional to 8,964.88, 12,371.87 and 4,931.86

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Solution

The fourth proportional to 8,964.88, 12,371.87 and 4,931.86 is: 6,806.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,964.88 : 12,371.87 = 4,931.86 : x
  2. Step 2: Convert to fraction form
    8,964.88/12,371.87 = 4,931.86/x
  3. Step 3: Cross multiply
    8,964.88x = 12,371.87 × 4,931.86
  4. Step 4: Simplify right side
    8,964.88x = 61,016,281.48
  5. Step 5: Solve for x
    x = 61,016,281.48/8,964.88
  6. Step 6: Final answer
    x = 6,806.15

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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.