Home / 13,402.50-20,101.01-5,079.65

Finding the Fourth Proportional to 13,402.50, 20,101.01 and 5,079.65

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Solution

The fourth proportional to 13,402.50, 20,101.01 and 5,079.65 is: 7,618.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,402.50 : 20,101.01 = 5,079.65 : x
  2. Step 2: Convert to fraction form
    13,402.50/20,101.01 = 5,079.65/x
  3. Step 3: Cross multiply
    13,402.50x = 20,101.01 × 5,079.65
  4. Step 4: Simplify right side
    13,402.50x = 102,106,095.45
  5. Step 5: Solve for x
    x = 102,106,095.45/13,402.50
  6. Step 6: Final answer
    x = 7,618.44

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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.