Home / 7,455.47-10,286.28-4,470.21

Finding the Fourth Proportional to 7,455.47, 10,286.28 and 4,470.21

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Solution

The fourth proportional to 7,455.47, 10,286.28 and 4,470.21 is: 6,167.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,455.47 : 10,286.28 = 4,470.21 : x
  2. Step 2: Convert to fraction form
    7,455.47/10,286.28 = 4,470.21/x
  3. Step 3: Cross multiply
    7,455.47x = 10,286.28 × 4,470.21
  4. Step 4: Simplify right side
    7,455.47x = 45,981,831.72
  5. Step 5: Solve for x
    x = 45,981,831.72/7,455.47
  6. Step 6: Final answer
    x = 6,167.53

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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.