Home / 13,472.82-20,217.42-5,681.63

Finding the Fourth Proportional to 13,472.82, 20,217.42 and 5,681.63

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Solution

The fourth proportional to 13,472.82, 20,217.42 and 5,681.63 is: 8,525.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,472.82 : 20,217.42 = 5,681.63 : x
  2. Step 2: Convert to fraction form
    13,472.82/20,217.42 = 5,681.63/x
  3. Step 3: Cross multiply
    13,472.82x = 20,217.42 × 5,681.63
  4. Step 4: Simplify right side
    13,472.82x = 114,867,798.91
  5. Step 5: Solve for x
    x = 114,867,798.91/13,472.82
  6. Step 6: Final answer
    x = 8,525.89

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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.