Home / 9,663.64-13,332.78-5,414.12

Finding the Fourth Proportional to 9,663.64, 13,332.78 and 5,414.12

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Solution

The fourth proportional to 9,663.64, 13,332.78 and 5,414.12 is: 7,469.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,663.64 : 13,332.78 = 5,414.12 : x
  2. Step 2: Convert to fraction form
    9,663.64/13,332.78 = 5,414.12/x
  3. Step 3: Cross multiply
    9,663.64x = 13,332.78 × 5,414.12
  4. Step 4: Simplify right side
    9,663.64x = 72,185,304.19
  5. Step 5: Solve for x
    x = 72,185,304.19/9,663.64
  6. Step 6: Final answer
    x = 7,469.79

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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.