Home / 13,472.68-20,211.82-5,681.56

Finding the Fourth Proportional to 13,472.68, 20,211.82 and 5,681.56

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Solution

The fourth proportional to 13,472.68, 20,211.82 and 5,681.56 is: 8,523.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,472.68 : 20,211.82 = 5,681.56 : x
  2. Step 2: Convert to fraction form
    13,472.68/20,211.82 = 5,681.56/x
  3. Step 3: Cross multiply
    13,472.68x = 20,211.82 × 5,681.56
  4. Step 4: Simplify right side
    13,472.68x = 114,834,668.04
  5. Step 5: Solve for x
    x = 114,834,668.04/13,472.68
  6. Step 6: Final answer
    x = 8,523.52

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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.