Home / 8,265.17-11,400.28-5,279.68

Finding the Fourth Proportional to 8,265.17, 11,400.28 and 5,279.68

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Solution

The fourth proportional to 8,265.17, 11,400.28 and 5,279.68 is: 7,282.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,265.17 : 11,400.28 = 5,279.68 : x
  2. Step 2: Convert to fraction form
    8,265.17/11,400.28 = 5,279.68/x
  3. Step 3: Cross multiply
    8,265.17x = 11,400.28 × 5,279.68
  4. Step 4: Simplify right side
    8,265.17x = 60,189,831.36
  5. Step 5: Solve for x
    x = 60,189,831.36/8,265.17
  6. Step 6: Final answer
    x = 7,282.34

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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.