Home / 8,964.86-12,371.80-4,931.86

Finding the Fourth Proportional to 8,964.86, 12,371.80 and 4,931.86

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Solution

The fourth proportional to 8,964.86, 12,371.80 and 4,931.86 is: 6,806.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,964.86 : 12,371.80 = 4,931.86 : x
  2. Step 2: Convert to fraction form
    8,964.86/12,371.80 = 4,931.86/x
  3. Step 3: Cross multiply
    8,964.86x = 12,371.80 × 4,931.86
  4. Step 4: Simplify right side
    8,964.86x = 61,015,985.55
  5. Step 5: Solve for x
    x = 61,015,985.55/8,964.86
  6. Step 6: Final answer
    x = 6,806.13

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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.