Home / 10,155.51-15,231.44-2,759.00

Finding the Fourth Proportional to 10,155.51, 15,231.44 and 2,759.00

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Solution

The fourth proportional to 10,155.51, 15,231.44 and 2,759.00 is: 4,138.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,155.51 : 15,231.44 = 2,759.00 : x
  2. Step 2: Convert to fraction form
    10,155.51/15,231.44 = 2,759.00/x
  3. Step 3: Cross multiply
    10,155.51x = 15,231.44 × 2,759.00
  4. Step 4: Simplify right side
    10,155.51x = 42,023,473.70
  5. Step 5: Solve for x
    x = 42,023,473.70/10,155.51
  6. Step 6: Final answer
    x = 4,138.00

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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.