Home / 6,299.80-9,447.18-1,915.72

Finding the Fourth Proportional to 6,299.80, 9,447.18 and 1,915.72

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Solution

The fourth proportional to 6,299.80, 9,447.18 and 1,915.72 is: 2,872.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,299.80 : 9,447.18 = 1,915.72 : x
  2. Step 2: Convert to fraction form
    6,299.80/9,447.18 = 1,915.72/x
  3. Step 3: Cross multiply
    6,299.80x = 9,447.18 × 1,915.72
  4. Step 4: Simplify right side
    6,299.80x = 18,098,151.67
  5. Step 5: Solve for x
    x = 18,098,151.67/6,299.80
  6. Step 6: Final answer
    x = 2,872.81

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1.5x scale

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.