Home / 13,471.55-20,217.85-9,340.65

Finding the Fourth Proportional to 13,471.55, 20,217.85 and 9,340.65

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Solution

The fourth proportional to 13,471.55, 20,217.85 and 9,340.65 is: 14,018.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,471.55 : 20,217.85 = 9,340.65 : x
  2. Step 2: Convert to fraction form
    13,471.55/20,217.85 = 9,340.65/x
  3. Step 3: Cross multiply
    13,471.55x = 20,217.85 × 9,340.65
  4. Step 4: Simplify right side
    13,471.55x = 188,847,837.25
  5. Step 5: Solve for x
    x = 188,847,837.25/13,471.55
  6. Step 6: Final answer
    x = 14,018.28

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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.