Home / 7,385.20-10,170.84-7,223.92

Finding the Fourth Proportional to 7,385.20, 10,170.84 and 7,223.92

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Solution

The fourth proportional to 7,385.20, 10,170.84 and 7,223.92 is: 9,948.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,385.20 : 10,170.84 = 7,223.92 : x
  2. Step 2: Convert to fraction form
    7,385.20/10,170.84 = 7,223.92/x
  3. Step 3: Cross multiply
    7,385.20x = 10,170.84 × 7,223.92
  4. Step 4: Simplify right side
    7,385.20x = 73,473,334.49
  5. Step 5: Solve for x
    x = 73,473,334.49/7,385.20
  6. Step 6: Final answer
    x = 9,948.73

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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.