Home / 13,375.55-20,063.63-4,490.87

Finding the Fourth Proportional to 13,375.55, 20,063.63 and 4,490.87

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Solution

The fourth proportional to 13,375.55, 20,063.63 and 4,490.87 is: 6,736.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,375.55 : 20,063.63 = 4,490.87 : x
  2. Step 2: Convert to fraction form
    13,375.55/20,063.63 = 4,490.87/x
  3. Step 3: Cross multiply
    13,375.55x = 20,063.63 × 4,490.87
  4. Step 4: Simplify right side
    13,375.55x = 90,103,064.97
  5. Step 5: Solve for x
    x = 90,103,064.97/13,375.55
  6. Step 6: Final answer
    x = 6,736.40

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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.