Home / 13,722.08-20,588.04-5,397.48

Finding the Fourth Proportional to 13,722.08, 20,588.04 and 5,397.48

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Solution

The fourth proportional to 13,722.08, 20,588.04 and 5,397.48 is: 8,098.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,722.08 : 20,588.04 = 5,397.48 : x
  2. Step 2: Convert to fraction form
    13,722.08/20,588.04 = 5,397.48/x
  3. Step 3: Cross multiply
    13,722.08x = 20,588.04 × 5,397.48
  4. Step 4: Simplify right side
    13,722.08x = 111,123,534.14
  5. Step 5: Solve for x
    x = 111,123,534.14/13,722.08
  6. Step 6: Final answer
    x = 8,098.16

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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.