Home / 11,079.50-15,290.19-6,111.50

Finding the Fourth Proportional to 11,079.50, 15,290.19 and 6,111.50

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Solution

The fourth proportional to 11,079.50, 15,290.19 and 6,111.50 is: 8,434.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,079.50 : 15,290.19 = 6,111.50 : x
  2. Step 2: Convert to fraction form
    11,079.50/15,290.19 = 6,111.50/x
  3. Step 3: Cross multiply
    11,079.50x = 15,290.19 × 6,111.50
  4. Step 4: Simplify right side
    11,079.50x = 93,445,996.19
  5. Step 5: Solve for x
    x = 93,445,996.19/11,079.50
  6. Step 6: Final answer
    x = 8,434.13

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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.