Home / 9,197.20-12,688.56-5,659.12

Finding the Fourth Proportional to 9,197.20, 12,688.56 and 5,659.12

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Solution

The fourth proportional to 9,197.20, 12,688.56 and 5,659.12 is: 7,807.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,197.20 : 12,688.56 = 5,659.12 : x
  2. Step 2: Convert to fraction form
    9,197.20/12,688.56 = 5,659.12/x
  3. Step 3: Cross multiply
    9,197.20x = 12,688.56 × 5,659.12
  4. Step 4: Simplify right side
    9,197.20x = 71,806,083.67
  5. Step 5: Solve for x
    x = 71,806,083.67/9,197.20
  6. Step 6: Final answer
    x = 7,807.39

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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.