Home / 13,675.08-20,515.38-4,316.55

Finding the Fourth Proportional to 13,675.08, 20,515.38 and 4,316.55

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Solution

The fourth proportional to 13,675.08, 20,515.38 and 4,316.55 is: 6,475.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,675.08 : 20,515.38 = 4,316.55 : x
  2. Step 2: Convert to fraction form
    13,675.08/20,515.38 = 4,316.55/x
  3. Step 3: Cross multiply
    13,675.08x = 20,515.38 × 4,316.55
  4. Step 4: Simplify right side
    13,675.08x = 88,555,663.54
  5. Step 5: Solve for x
    x = 88,555,663.54/13,675.08
  6. Step 6: Final answer
    x = 6,475.70

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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.