Home / 10,687.12-16,031.98-4,451.36

Finding the Fourth Proportional to 10,687.12, 16,031.98 and 4,451.36

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Solution

The fourth proportional to 10,687.12, 16,031.98 and 4,451.36 is: 6,677.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,687.12 : 16,031.98 = 4,451.36 : x
  2. Step 2: Convert to fraction form
    10,687.12/16,031.98 = 4,451.36/x
  3. Step 3: Cross multiply
    10,687.12x = 16,031.98 × 4,451.36
  4. Step 4: Simplify right side
    10,687.12x = 71,364,114.49
  5. Step 5: Solve for x
    x = 71,364,114.49/10,687.12
  6. Step 6: Final answer
    x = 6,677.58

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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.