Home / 10,116.95-15,174-4,272.21

Finding the Fourth Proportional to 10,116.95, 15,174 and 4,272.21

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Solution

The fourth proportional to 10,116.95, 15,174 and 4,272.21 is: 6,407.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,116.95 : 15,174 = 4,272.21 : x
  2. Step 2: Convert to fraction form
    10,116.95/15,174 = 4,272.21/x
  3. Step 3: Cross multiply
    10,116.95x = 15,174 × 4,272.21
  4. Step 4: Simplify right side
    10,116.95x = 64,826,514.54
  5. Step 5: Solve for x
    x = 64,826,514.54/10,116.95
  6. Step 6: Final answer
    x = 6,407.72

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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.