Home / 8,245.90-12,352.38-4,957.21

Finding the Fourth Proportional to 8,245.90, 12,352.38 and 4,957.21

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Solution

The fourth proportional to 8,245.90, 12,352.38 and 4,957.21 is: 7,425.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,245.90 : 12,352.38 = 4,957.21 : x
  2. Step 2: Convert to fraction form
    8,245.90/12,352.38 = 4,957.21/x
  3. Step 3: Cross multiply
    8,245.90x = 12,352.38 × 4,957.21
  4. Step 4: Simplify right side
    8,245.90x = 61,233,341.66
  5. Step 5: Solve for x
    x = 61,233,341.66/8,245.90
  6. Step 6: Final answer
    x = 7,425.91

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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.