Home / 13,531.24-20,283.42-7,675.72

Finding the Fourth Proportional to 13,531.24, 20,283.42 and 7,675.72

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Solution

The fourth proportional to 13,531.24, 20,283.42 and 7,675.72 is: 11,505.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,531.24 : 20,283.42 = 7,675.72 : x
  2. Step 2: Convert to fraction form
    13,531.24/20,283.42 = 7,675.72/x
  3. Step 3: Cross multiply
    13,531.24x = 20,283.42 × 7,675.72
  4. Step 4: Simplify right side
    13,531.24x = 155,689,852.56
  5. Step 5: Solve for x
    x = 155,689,852.56/13,531.24
  6. Step 6: Final answer
    x = 11,505.96

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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.