Home / 9,627.72-13,286.08-5,378.85

Finding the Fourth Proportional to 9,627.72, 13,286.08 and 5,378.85

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Solution

The fourth proportional to 9,627.72, 13,286.08 and 5,378.85 is: 7,422.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,627.72 : 13,286.08 = 5,378.85 : x
  2. Step 2: Convert to fraction form
    9,627.72/13,286.08 = 5,378.85/x
  3. Step 3: Cross multiply
    9,627.72x = 13,286.08 × 5,378.85
  4. Step 4: Simplify right side
    9,627.72x = 71,463,831.41
  5. Step 5: Solve for x
    x = 71,463,831.41/9,627.72
  6. Step 6: Final answer
    x = 7,422.72

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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.