Home / 9,819.28-13,540.44-7,581.52

Finding the Fourth Proportional to 9,819.28, 13,540.44 and 7,581.52

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Solution

The fourth proportional to 9,819.28, 13,540.44 and 7,581.52 is: 10,454.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,819.28 : 13,540.44 = 7,581.52 : x
  2. Step 2: Convert to fraction form
    9,819.28/13,540.44 = 7,581.52/x
  3. Step 3: Cross multiply
    9,819.28x = 13,540.44 × 7,581.52
  4. Step 4: Simplify right side
    9,819.28x = 102,657,116.67
  5. Step 5: Solve for x
    x = 102,657,116.67/9,819.28
  6. Step 6: Final answer
    x = 10,454.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.