Home / 10,080.50-15,118.30-3,155

Finding the Fourth Proportional to 10,080.50, 15,118.30 and 3,155

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Solution

The fourth proportional to 10,080.50, 15,118.30 and 3,155 is: 4,731.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,080.50 : 15,118.30 = 3,155 : x
  2. Step 2: Convert to fraction form
    10,080.50/15,118.30 = 3,155/x
  3. Step 3: Cross multiply
    10,080.50x = 15,118.30 × 3,155
  4. Step 4: Simplify right side
    10,080.50x = 47,698,236.50
  5. Step 5: Solve for x
    x = 47,698,236.50/10,080.50
  6. Step 6: Final answer
    x = 4,731.73

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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.