Home / 13,387.68-20,082.50-3,526.88

Finding the Fourth Proportional to 13,387.68, 20,082.50 and 3,526.88

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Solution

The fourth proportional to 13,387.68, 20,082.50 and 3,526.88 is: 5,290.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,387.68 : 20,082.50 = 3,526.88 : x
  2. Step 2: Convert to fraction form
    13,387.68/20,082.50 = 3,526.88/x
  3. Step 3: Cross multiply
    13,387.68x = 20,082.50 × 3,526.88
  4. Step 4: Simplify right side
    13,387.68x = 70,828,462.78
  5. Step 5: Solve for x
    x = 70,828,462.78/13,387.68
  6. Step 6: Final answer
    x = 5,290.57

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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.