Home / 13,642.03-20,454.20-5,322.89

Finding the Fourth Proportional to 13,642.03, 20,454.20 and 5,322.89

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Solution

The fourth proportional to 13,642.03, 20,454.20 and 5,322.89 is: 7,980.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,642.03 : 20,454.20 = 5,322.89 : x
  2. Step 2: Convert to fraction form
    13,642.03/20,454.20 = 5,322.89/x
  3. Step 3: Cross multiply
    13,642.03x = 20,454.20 × 5,322.89
  4. Step 4: Simplify right side
    13,642.03x = 108,875,456.64
  5. Step 5: Solve for x
    x = 108,875,456.64/13,642.03
  6. Step 6: Final answer
    x = 7,980.88

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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.