Home / 10,121.27-15,182.00-3,547.45

Finding the Fourth Proportional to 10,121.27, 15,182.00 and 3,547.45

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Solution

The fourth proportional to 10,121.27, 15,182.00 and 3,547.45 is: 5,321.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,121.27 : 15,182.00 = 3,547.45 : x
  2. Step 2: Convert to fraction form
    10,121.27/15,182.00 = 3,547.45/x
  3. Step 3: Cross multiply
    10,121.27x = 15,182.00 × 3,547.45
  4. Step 4: Simplify right side
    10,121.27x = 53,857,292.25
  5. Step 5: Solve for x
    x = 53,857,292.25/10,121.27
  6. Step 6: Final answer
    x = 5,321.20

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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.