Home / 13,392.32-20,082.72-5,489.34

Finding the Fourth Proportional to 13,392.32, 20,082.72 and 5,489.34

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Solution

The fourth proportional to 13,392.32, 20,082.72 and 5,489.34 is: 8,231.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,392.32 : 20,082.72 = 5,489.34 : x
  2. Step 2: Convert to fraction form
    13,392.32/20,082.72 = 5,489.34/x
  3. Step 3: Cross multiply
    13,392.32x = 20,082.72 × 5,489.34
  4. Step 4: Simplify right side
    13,392.32x = 110,240,878.20
  5. Step 5: Solve for x
    x = 110,240,878.20/13,392.32
  6. Step 6: Final answer
    x = 8,231.65

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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.