Home / 18,850.45-28,264.90-7,748

Finding the Fourth Proportional to 18,850.45, 28,264.90 and 7,748

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Solution

The fourth proportional to 18,850.45, 28,264.90 and 7,748 is: 11,617.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,850.45 : 28,264.90 = 7,748 : x
  2. Step 2: Convert to fraction form
    18,850.45/28,264.90 = 7,748/x
  3. Step 3: Cross multiply
    18,850.45x = 28,264.90 × 7,748
  4. Step 4: Simplify right side
    18,850.45x = 218,996,445.20
  5. Step 5: Solve for x
    x = 218,996,445.20/18,850.45
  6. Step 6: Final answer
    x = 11,617.57

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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.