Home / 9,200.48-12,695.84-5,221.76

Finding the Fourth Proportional to 9,200.48, 12,695.84 and 5,221.76

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Solution

The fourth proportional to 9,200.48, 12,695.84 and 5,221.76 is: 7,205.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,200.48 : 12,695.84 = 5,221.76 : x
  2. Step 2: Convert to fraction form
    9,200.48/12,695.84 = 5,221.76/x
  3. Step 3: Cross multiply
    9,200.48x = 12,695.84 × 5,221.76
  4. Step 4: Simplify right side
    9,200.48x = 66,294,629.48
  5. Step 5: Solve for x
    x = 66,294,629.48/9,200.48
  6. Step 6: Final answer
    x = 7,205.56

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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.