Home / 13,385.11-20,077.98-4,500.55

Finding the Fourth Proportional to 13,385.11, 20,077.98 and 4,500.55

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Solution

The fourth proportional to 13,385.11, 20,077.98 and 4,500.55 is: 6,750.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385.11 : 20,077.98 = 4,500.55 : x
  2. Step 2: Convert to fraction form
    13,385.11/20,077.98 = 4,500.55/x
  3. Step 3: Cross multiply
    13,385.11x = 20,077.98 × 4,500.55
  4. Step 4: Simplify right side
    13,385.11x = 90,361,952.89
  5. Step 5: Solve for x
    x = 90,361,952.89/13,385.11
  6. Step 6: Final answer
    x = 6,750.93

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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.