Home / 11,078.29-15,291.20-6,300.81

Finding the Fourth Proportional to 11,078.29, 15,291.20 and 6,300.81

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Solution

The fourth proportional to 11,078.29, 15,291.20 and 6,300.81 is: 8,696.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,078.29 : 15,291.20 = 6,300.81 : x
  2. Step 2: Convert to fraction form
    11,078.29/15,291.20 = 6,300.81/x
  3. Step 3: Cross multiply
    11,078.29x = 15,291.20 × 6,300.81
  4. Step 4: Simplify right side
    11,078.29x = 96,346,945.87
  5. Step 5: Solve for x
    x = 96,346,945.87/11,078.29
  6. Step 6: Final answer
    x = 8,696.91

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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.