Home / 15,145.20-22,717.80-4,755.60

Finding the Fourth Proportional to 15,145.20, 22,717.80 and 4,755.60

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Solution

The fourth proportional to 15,145.20, 22,717.80 and 4,755.60 is: 7,133.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,145.20 : 22,717.80 = 4,755.60 : x
  2. Step 2: Convert to fraction form
    15,145.20/22,717.80 = 4,755.60/x
  3. Step 3: Cross multiply
    15,145.20x = 22,717.80 × 4,755.60
  4. Step 4: Simplify right side
    15,145.20x = 108,036,769.68
  5. Step 5: Solve for x
    x = 108,036,769.68/15,145.20
  6. Step 6: Final answer
    x = 7,133.40

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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.