Home / 11,017.92-15,207.30-7,042.44

Finding the Fourth Proportional to 11,017.92, 15,207.30 and 7,042.44

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Solution

The fourth proportional to 11,017.92, 15,207.30 and 7,042.44 is: 9,720.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,017.92 : 15,207.30 = 7,042.44 : x
  2. Step 2: Convert to fraction form
    11,017.92/15,207.30 = 7,042.44/x
  3. Step 3: Cross multiply
    11,017.92x = 15,207.30 × 7,042.44
  4. Step 4: Simplify right side
    11,017.92x = 107,096,497.81
  5. Step 5: Solve for x
    x = 107,096,497.81/11,017.92
  6. Step 6: Final answer
    x = 9,720.21

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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.