Home / 13,525.38-20,280.78-4,753.69

Finding the Fourth Proportional to 13,525.38, 20,280.78 and 4,753.69

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Solution

The fourth proportional to 13,525.38, 20,280.78 and 4,753.69 is: 7,127.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,525.38 : 20,280.78 = 4,753.69 : x
  2. Step 2: Convert to fraction form
    13,525.38/20,280.78 = 4,753.69/x
  3. Step 3: Cross multiply
    13,525.38x = 20,280.78 × 4,753.69
  4. Step 4: Simplify right side
    13,525.38x = 96,408,490.38
  5. Step 5: Solve for x
    x = 96,408,490.38/13,525.38
  6. Step 6: Final answer
    x = 7,127.97

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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.