Home / 13,904.12-20,860.08-5,589.96

Finding the Fourth Proportional to 13,904.12, 20,860.08 and 5,589.96

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Solution

The fourth proportional to 13,904.12, 20,860.08 and 5,589.96 is: 8,386.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,904.12 : 20,860.08 = 5,589.96 : x
  2. Step 2: Convert to fraction form
    13,904.12/20,860.08 = 5,589.96/x
  3. Step 3: Cross multiply
    13,904.12x = 20,860.08 × 5,589.96
  4. Step 4: Simplify right side
    13,904.12x = 116,607,012.80
  5. Step 5: Solve for x
    x = 116,607,012.80/13,904.12
  6. Step 6: Final answer
    x = 8,386.51

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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.