Home / 15,146.19-22,721.45-4,758.75

Finding the Fourth Proportional to 15,146.19, 22,721.45 and 4,758.75

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Solution

The fourth proportional to 15,146.19, 22,721.45 and 4,758.75 is: 7,138.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,146.19 : 22,721.45 = 4,758.75 : x
  2. Step 2: Convert to fraction form
    15,146.19/22,721.45 = 4,758.75/x
  3. Step 3: Cross multiply
    15,146.19x = 22,721.45 × 4,758.75
  4. Step 4: Simplify right side
    15,146.19x = 108,125,676.39
  5. Step 5: Solve for x
    x = 108,125,676.39/15,146.19
  6. Step 6: Final answer
    x = 7,138.80

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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.