Home / 13,610.38-20,427.88-7,041.18

Finding the Fourth Proportional to 13,610.38, 20,427.88 and 7,041.18

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Solution

The fourth proportional to 13,610.38, 20,427.88 and 7,041.18 is: 10,568.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,610.38 : 20,427.88 = 7,041.18 : x
  2. Step 2: Convert to fraction form
    13,610.38/20,427.88 = 7,041.18/x
  3. Step 3: Cross multiply
    13,610.38x = 20,427.88 × 7,041.18
  4. Step 4: Simplify right side
    13,610.38x = 143,836,380.10
  5. Step 5: Solve for x
    x = 143,836,380.10/13,610.38
  6. Step 6: Final answer
    x = 10,568.14

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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.