Home / 11,167.24-15,407.78-6,386.19

Finding the Fourth Proportional to 11,167.24, 15,407.78 and 6,386.19

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Solution

The fourth proportional to 11,167.24, 15,407.78 and 6,386.19 is: 8,811.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,167.24 : 15,407.78 = 6,386.19 : x
  2. Step 2: Convert to fraction form
    11,167.24/15,407.78 = 6,386.19/x
  3. Step 3: Cross multiply
    11,167.24x = 15,407.78 × 6,386.19
  4. Step 4: Simplify right side
    11,167.24x = 98,397,010.56
  5. Step 5: Solve for x
    x = 98,397,010.56/11,167.24
  6. Step 6: Final answer
    x = 8,811.22

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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.