Home / 8,117.59-11,196.48-5,279.68

Finding the Fourth Proportional to 8,117.59, 11,196.48 and 5,279.68

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Solution

The fourth proportional to 8,117.59, 11,196.48 and 5,279.68 is: 7,282.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,117.59 : 11,196.48 = 5,279.68 : x
  2. Step 2: Convert to fraction form
    8,117.59/11,196.48 = 5,279.68/x
  3. Step 3: Cross multiply
    8,117.59x = 11,196.48 × 5,279.68
  4. Step 4: Simplify right side
    8,117.59x = 59,113,831.53
  5. Step 5: Solve for x
    x = 59,113,831.53/8,117.59
  6. Step 6: Final answer
    x = 7,282.19

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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.