Home / 12,000.24-16,568.28-7,815.60

Finding the Fourth Proportional to 12,000.24, 16,568.28 and 7,815.60

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Solution

The fourth proportional to 12,000.24, 16,568.28 and 7,815.60 is: 10,790.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,000.24 : 16,568.28 = 7,815.60 : x
  2. Step 2: Convert to fraction form
    12,000.24/16,568.28 = 7,815.60/x
  3. Step 3: Cross multiply
    12,000.24x = 16,568.28 × 7,815.60
  4. Step 4: Simplify right side
    12,000.24x = 129,491,049.17
  5. Step 5: Solve for x
    x = 129,491,049.17/12,000.24
  6. Step 6: Final answer
    x = 10,790.70

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1.5x scale

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.