Home / 8,385.20-12,572.64-2,838.04

Finding the Fourth Proportional to 8,385.20, 12,572.64 and 2,838.04

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Solution

The fourth proportional to 8,385.20, 12,572.64 and 2,838.04 is: 4,255.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,385.20 : 12,572.64 = 2,838.04 : x
  2. Step 2: Convert to fraction form
    8,385.20/12,572.64 = 2,838.04/x
  3. Step 3: Cross multiply
    8,385.20x = 12,572.64 × 2,838.04
  4. Step 4: Simplify right side
    8,385.20x = 35,681,655.23
  5. Step 5: Solve for x
    x = 35,681,655.23/8,385.20
  6. Step 6: Final answer
    x = 4,255.31

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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.