Home / 13,375.72-20,069.35-6,360.72

Finding the Fourth Proportional to 13,375.72, 20,069.35 and 6,360.72

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Solution

The fourth proportional to 13,375.72, 20,069.35 and 6,360.72 is: 9,543.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,375.72 : 20,069.35 = 6,360.72 : x
  2. Step 2: Convert to fraction form
    13,375.72/20,069.35 = 6,360.72/x
  3. Step 3: Cross multiply
    13,375.72x = 20,069.35 × 6,360.72
  4. Step 4: Simplify right side
    13,375.72x = 127,655,515.93
  5. Step 5: Solve for x
    x = 127,655,515.93/13,375.72
  6. Step 6: Final answer
    x = 9,543.82

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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.