Home / 11,407.40-17,111.04-5,169.56

Finding the Fourth Proportional to 11,407.40, 17,111.04 and 5,169.56

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Solution

The fourth proportional to 11,407.40, 17,111.04 and 5,169.56 is: 7,754.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,407.40 : 17,111.04 = 5,169.56 : x
  2. Step 2: Convert to fraction form
    11,407.40/17,111.04 = 5,169.56/x
  3. Step 3: Cross multiply
    11,407.40x = 17,111.04 × 5,169.56
  4. Step 4: Simplify right side
    11,407.40x = 88,456,547.94
  5. Step 5: Solve for x
    x = 88,456,547.94/11,407.40
  6. Step 6: Final answer
    x = 7,754.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.