Home / 9,208.28-12,708.24-5,230.64

Finding the Fourth Proportional to 9,208.28, 12,708.24 and 5,230.64

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Solution

The fourth proportional to 9,208.28, 12,708.24 and 5,230.64 is: 7,218.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,208.28 : 12,708.24 = 5,230.64 : x
  2. Step 2: Convert to fraction form
    9,208.28/12,708.24 = 5,230.64/x
  3. Step 3: Cross multiply
    9,208.28x = 12,708.24 × 5,230.64
  4. Step 4: Simplify right side
    9,208.28x = 66,472,228.47
  5. Step 5: Solve for x
    x = 66,472,228.47/9,208.28
  6. Step 6: Final answer
    x = 7,218.75

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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.