Home / 11,324.39-15,627.71-6,288.71

Finding the Fourth Proportional to 11,324.39, 15,627.71 and 6,288.71

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Solution

The fourth proportional to 11,324.39, 15,627.71 and 6,288.71 is: 8,678.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,324.39 : 15,627.71 = 6,288.71 : x
  2. Step 2: Convert to fraction form
    11,324.39/15,627.71 = 6,288.71/x
  3. Step 3: Cross multiply
    11,324.39x = 15,627.71 × 6,288.71
  4. Step 4: Simplify right side
    11,324.39x = 98,278,136.15
  5. Step 5: Solve for x
    x = 98,278,136.15/11,324.39
  6. Step 6: Final answer
    x = 8,678.45

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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.