Home / 15,811.38-23,720.49-4,718.95

Finding the Fourth Proportional to 15,811.38, 23,720.49 and 4,718.95

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Solution

The fourth proportional to 15,811.38, 23,720.49 and 4,718.95 is: 7,079.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,811.38 : 23,720.49 = 4,718.95 : x
  2. Step 2: Convert to fraction form
    15,811.38/23,720.49 = 4,718.95/x
  3. Step 3: Cross multiply
    15,811.38x = 23,720.49 × 4,718.95
  4. Step 4: Simplify right side
    15,811.38x = 111,935,746.98
  5. Step 5: Solve for x
    x = 111,935,746.98/15,811.38
  6. Step 6: Final answer
    x = 7,079.44

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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.