Home / 13,712.12-20,575.86-7,472.56

Finding the Fourth Proportional to 13,712.12, 20,575.86 and 7,472.56

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Solution

The fourth proportional to 13,712.12, 20,575.86 and 7,472.56 is: 11,213.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712.12 : 20,575.86 = 7,472.56 : x
  2. Step 2: Convert to fraction form
    13,712.12/20,575.86 = 7,472.56/x
  3. Step 3: Cross multiply
    13,712.12x = 20,575.86 × 7,472.56
  4. Step 4: Simplify right side
    13,712.12x = 153,754,348.40
  5. Step 5: Solve for x
    x = 153,754,348.40/13,712.12
  6. Step 6: Final answer
    x = 11,213.03

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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.