Home / 13,443.24-20,168.96-6,874.03

Finding the Fourth Proportional to 13,443.24, 20,168.96 and 6,874.03

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Solution

The fourth proportional to 13,443.24, 20,168.96 and 6,874.03 is: 10,313.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,443.24 : 20,168.96 = 6,874.03 : x
  2. Step 2: Convert to fraction form
    13,443.24/20,168.96 = 6,874.03/x
  3. Step 3: Cross multiply
    13,443.24x = 20,168.96 × 6,874.03
  4. Step 4: Simplify right side
    13,443.24x = 138,642,036.11
  5. Step 5: Solve for x
    x = 138,642,036.11/13,443.24
  6. Step 6: Final answer
    x = 10,313.14

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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.