Home / 7,146.72-9,861.84-4,353.12

Finding the Fourth Proportional to 7,146.72, 9,861.84 and 4,353.12

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Solution

The fourth proportional to 7,146.72, 9,861.84 and 4,353.12 is: 6,006.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146.72 : 9,861.84 = 4,353.12 : x
  2. Step 2: Convert to fraction form
    7,146.72/9,861.84 = 4,353.12/x
  3. Step 3: Cross multiply
    7,146.72x = 9,861.84 × 4,353.12
  4. Step 4: Simplify right side
    7,146.72x = 42,929,772.94
  5. Step 5: Solve for x
    x = 42,929,772.94/7,146.72
  6. Step 6: Final answer
    x = 6,006.92

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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.