Home / 10,964.90-16,438.13-4,387.50

Finding the Fourth Proportional to 10,964.90, 16,438.13 and 4,387.50

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Solution

The fourth proportional to 10,964.90, 16,438.13 and 4,387.50 is: 6,577.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,964.90 : 16,438.13 = 4,387.50 : x
  2. Step 2: Convert to fraction form
    10,964.90/16,438.13 = 4,387.50/x
  3. Step 3: Cross multiply
    10,964.90x = 16,438.13 × 4,387.50
  4. Step 4: Simplify right side
    10,964.90x = 72,122,289.89
  5. Step 5: Solve for x
    x = 72,122,289.89/10,964.90
  6. Step 6: Final answer
    x = 6,577.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.