Home / 10,131.80-15,201.30-4,934.20

Finding the Fourth Proportional to 10,131.80, 15,201.30 and 4,934.20

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Solution

The fourth proportional to 10,131.80, 15,201.30 and 4,934.20 is: 7,403.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,131.80 : 15,201.30 = 4,934.20 : x
  2. Step 2: Convert to fraction form
    10,131.80/15,201.30 = 4,934.20/x
  3. Step 3: Cross multiply
    10,131.80x = 15,201.30 × 4,934.20
  4. Step 4: Simplify right side
    10,131.80x = 75,006,254.46
  5. Step 5: Solve for x
    x = 75,006,254.46/10,131.80
  6. Step 6: Final answer
    x = 7,403.05

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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.