Home / 9,077.38-13,621.80-4,920.28

Finding the Fourth Proportional to 9,077.38, 13,621.80 and 4,920.28

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Solution

The fourth proportional to 9,077.38, 13,621.80 and 4,920.28 is: 7,383.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,077.38 : 13,621.80 = 4,920.28 : x
  2. Step 2: Convert to fraction form
    9,077.38/13,621.80 = 4,920.28/x
  3. Step 3: Cross multiply
    9,077.38x = 13,621.80 × 4,920.28
  4. Step 4: Simplify right side
    9,077.38x = 67,023,070.10
  5. Step 5: Solve for x
    x = 67,023,070.10/9,077.38
  6. Step 6: Final answer
    x = 7,383.53

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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.