Home / 15,020.10-20,729.52-8,732.46

Finding the Fourth Proportional to 15,020.10, 20,729.52 and 8,732.46

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Solution

The fourth proportional to 15,020.10, 20,729.52 and 8,732.46 is: 12,051.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,020.10 : 20,729.52 = 8,732.46 : x
  2. Step 2: Convert to fraction form
    15,020.10/20,729.52 = 8,732.46/x
  3. Step 3: Cross multiply
    15,020.10x = 20,729.52 × 8,732.46
  4. Step 4: Simplify right side
    15,020.10x = 181,019,704.22
  5. Step 5: Solve for x
    x = 181,019,704.22/15,020.10
  6. Step 6: Final answer
    x = 12,051.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.