Home / 15,000.12-20,703.60-8,713.44

Finding the Fourth Proportional to 15,000.12, 20,703.60 and 8,713.44

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Solution

The fourth proportional to 15,000.12, 20,703.60 and 8,713.44 is: 12,026.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,000.12 : 20,703.60 = 8,713.44 : x
  2. Step 2: Convert to fraction form
    15,000.12/20,703.60 = 8,713.44/x
  3. Step 3: Cross multiply
    15,000.12x = 20,703.60 × 8,713.44
  4. Step 4: Simplify right side
    15,000.12x = 180,399,576.38
  5. Step 5: Solve for x
    x = 180,399,576.38/15,000.12
  6. Step 6: Final answer
    x = 12,026.54

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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.