Home / 14,139.08-21,207.68-5,373.75

Finding the Fourth Proportional to 14,139.08, 21,207.68 and 5,373.75

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Solution

The fourth proportional to 14,139.08, 21,207.68 and 5,373.75 is: 8,060.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,139.08 : 21,207.68 = 5,373.75 : x
  2. Step 2: Convert to fraction form
    14,139.08/21,207.68 = 5,373.75/x
  3. Step 3: Cross multiply
    14,139.08x = 21,207.68 × 5,373.75
  4. Step 4: Simplify right side
    14,139.08x = 113,964,770.40
  5. Step 5: Solve for x
    x = 113,964,770.40/14,139.08
  6. Step 6: Final answer
    x = 8,060.27

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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.