Home / 11,439.71-17,128.88-11,083.10

Finding the Fourth Proportional to 11,439.71, 17,128.88 and 11,083.10

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Solution

The fourth proportional to 11,439.71, 17,128.88 and 11,083.10 is: 16,594.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,439.71 : 17,128.88 = 11,083.10 : x
  2. Step 2: Convert to fraction form
    11,439.71/17,128.88 = 11,083.10/x
  3. Step 3: Cross multiply
    11,439.71x = 17,128.88 × 11,083.10
  4. Step 4: Simplify right side
    11,439.71x = 189,841,034.51
  5. Step 5: Solve for x
    x = 189,841,034.51/11,439.71
  6. Step 6: Final answer
    x = 16,594.92

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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.