Home / 13,598.11-20,400.41-5,278.33

Finding the Fourth Proportional to 13,598.11, 20,400.41 and 5,278.33

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Solution

The fourth proportional to 13,598.11, 20,400.41 and 5,278.33 is: 7,918.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,598.11 : 20,400.41 = 5,278.33 : x
  2. Step 2: Convert to fraction form
    13,598.11/20,400.41 = 5,278.33/x
  3. Step 3: Cross multiply
    13,598.11x = 20,400.41 × 5,278.33
  4. Step 4: Simplify right side
    13,598.11x = 107,680,096.12
  5. Step 5: Solve for x
    x = 107,680,096.12/13,598.11
  6. Step 6: Final answer
    x = 7,918.75

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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.