Home / 11,929.12-17,743.49-11,889.16

Finding the Fourth Proportional to 11,929.12, 17,743.49 and 11,889.16

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Solution

The fourth proportional to 11,929.12, 17,743.49 and 11,889.16 is: 17,684.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,929.12 : 17,743.49 = 11,889.16 : x
  2. Step 2: Convert to fraction form
    11,929.12/17,743.49 = 11,889.16/x
  3. Step 3: Cross multiply
    11,929.12x = 17,743.49 × 11,889.16
  4. Step 4: Simplify right side
    11,929.12x = 210,955,191.57
  5. Step 5: Solve for x
    x = 210,955,191.57/11,929.12
  6. Step 6: Final answer
    x = 17,684.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.