Home / 13,554.18-20,330.87-6,534.72

Finding the Fourth Proportional to 13,554.18, 20,330.87 and 6,534.72

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Solution

The fourth proportional to 13,554.18, 20,330.87 and 6,534.72 is: 9,801.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,554.18 : 20,330.87 = 6,534.72 : x
  2. Step 2: Convert to fraction form
    13,554.18/20,330.87 = 6,534.72/x
  3. Step 3: Cross multiply
    13,554.18x = 20,330.87 × 6,534.72
  4. Step 4: Simplify right side
    13,554.18x = 132,856,510.13
  5. Step 5: Solve for x
    x = 132,856,510.13/13,554.18
  6. Step 6: Final answer
    x = 9,801.88

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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.