Home / 10,117.70-15,177.45-2,721.99

Finding the Fourth Proportional to 10,117.70, 15,177.45 and 2,721.99

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Solution

The fourth proportional to 10,117.70, 15,177.45 and 2,721.99 is: 4,083.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,117.70 : 15,177.45 = 2,721.99 : x
  2. Step 2: Convert to fraction form
    10,117.70/15,177.45 = 2,721.99/x
  3. Step 3: Cross multiply
    10,117.70x = 15,177.45 × 2,721.99
  4. Step 4: Simplify right side
    10,117.70x = 41,312,867.13
  5. Step 5: Solve for x
    x = 41,312,867.13/10,117.70
  6. Step 6: Final answer
    x = 4,083.23

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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.