Home / 9,819.28-13,551.08-5,627.44

Finding the Fourth Proportional to 9,819.28, 13,551.08 and 5,627.44

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Solution

The fourth proportional to 9,819.28, 13,551.08 and 5,627.44 is: 7,766.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,819.28 : 13,551.08 = 5,627.44 : x
  2. Step 2: Convert to fraction form
    9,819.28/13,551.08 = 5,627.44/x
  3. Step 3: Cross multiply
    9,819.28x = 13,551.08 × 5,627.44
  4. Step 4: Simplify right side
    9,819.28x = 76,257,889.64
  5. Step 5: Solve for x
    x = 76,257,889.64/9,819.28
  6. Step 6: Final answer
    x = 7,766.14

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1.5x scale

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.