Home / 7,478.06-11,217.56-3,775.95

Finding the Fourth Proportional to 7,478.06, 11,217.56 and 3,775.95

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Solution

The fourth proportional to 7,478.06, 11,217.56 and 3,775.95 is: 5,664.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,478.06 : 11,217.56 = 3,775.95 : x
  2. Step 2: Convert to fraction form
    7,478.06/11,217.56 = 3,775.95/x
  3. Step 3: Cross multiply
    7,478.06x = 11,217.56 × 3,775.95
  4. Step 4: Simplify right side
    7,478.06x = 42,356,926.80
  5. Step 5: Solve for x
    x = 42,356,926.80/7,478.06
  6. Step 6: Final answer
    x = 5,664.16

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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.