Home / 18,965.16-26,170.92-11,007

Finding the Fourth Proportional to 18,965.16, 26,170.92 and 11,007

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Solution

The fourth proportional to 18,965.16, 26,170.92 and 11,007 is: 15,189.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,965.16 : 26,170.92 = 11,007 : x
  2. Step 2: Convert to fraction form
    18,965.16/26,170.92 = 11,007/x
  3. Step 3: Cross multiply
    18,965.16x = 26,170.92 × 11,007
  4. Step 4: Simplify right side
    18,965.16x = 288,063,316.44
  5. Step 5: Solve for x
    x = 288,063,316.44/18,965.16
  6. Step 6: Final answer
    x = 15,189.08

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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.