Home / 13,565.12-20,341.28-5,249.04

Finding the Fourth Proportional to 13,565.12, 20,341.28 and 5,249.04

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Solution

The fourth proportional to 13,565.12, 20,341.28 and 5,249.04 is: 7,871.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,565.12 : 20,341.28 = 5,249.04 : x
  2. Step 2: Convert to fraction form
    13,565.12/20,341.28 = 5,249.04/x
  3. Step 3: Cross multiply
    13,565.12x = 20,341.28 × 5,249.04
  4. Step 4: Simplify right side
    13,565.12x = 106,772,166.13
  5. Step 5: Solve for x
    x = 106,772,166.13/13,565.12
  6. Step 6: Final answer
    x = 7,871.08

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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.