Home / 7,248.30-10,872.45-4,137.90

Finding the Fourth Proportional to 7,248.30, 10,872.45 and 4,137.90

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Solution

The fourth proportional to 7,248.30, 10,872.45 and 4,137.90 is: 6,206.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,248.30 : 10,872.45 = 4,137.90 : x
  2. Step 2: Convert to fraction form
    7,248.30/10,872.45 = 4,137.90/x
  3. Step 3: Cross multiply
    7,248.30x = 10,872.45 × 4,137.90
  4. Step 4: Simplify right side
    7,248.30x = 44,989,110.86
  5. Step 5: Solve for x
    x = 44,989,110.86/7,248.30
  6. Step 6: Final answer
    x = 6,206.85

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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.