Home / 15,000.45-22,511.79-5,649.66

Finding the Fourth Proportional to 15,000.45, 22,511.79 and 5,649.66

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Solution

The fourth proportional to 15,000.45, 22,511.79 and 5,649.66 is: 8,478.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,000.45 : 22,511.79 = 5,649.66 : x
  2. Step 2: Convert to fraction form
    15,000.45/22,511.79 = 5,649.66/x
  3. Step 3: Cross multiply
    15,000.45x = 22,511.79 × 5,649.66
  4. Step 4: Simplify right side
    15,000.45x = 127,183,959.49
  5. Step 5: Solve for x
    x = 127,183,959.49/15,000.45
  6. Step 6: Final answer
    x = 8,478.68

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1.5x scale

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.