Home / 8,964.87-12,372.12-4,986.69

Finding the Fourth Proportional to 8,964.87, 12,372.12 and 4,986.69

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Solution

The fourth proportional to 8,964.87, 12,372.12 and 4,986.69 is: 6,881.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,964.87 : 12,372.12 = 4,986.69 : x
  2. Step 2: Convert to fraction form
    8,964.87/12,372.12 = 4,986.69/x
  3. Step 3: Cross multiply
    8,964.87x = 12,372.12 × 4,986.69
  4. Step 4: Simplify right side
    8,964.87x = 61,695,927.08
  5. Step 5: Solve for x
    x = 61,695,927.08/8,964.87
  6. Step 6: Final answer
    x = 6,881.97

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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.