Home / 18,717.59-25,806.93-11,992.16

Finding the Fourth Proportional to 18,717.59, 25,806.93 and 11,992.16

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Solution

The fourth proportional to 18,717.59, 25,806.93 and 11,992.16 is: 16,534.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,717.59 : 25,806.93 = 11,992.16 : x
  2. Step 2: Convert to fraction form
    18,717.59/25,806.93 = 11,992.16/x
  3. Step 3: Cross multiply
    18,717.59x = 25,806.93 × 11,992.16
  4. Step 4: Simplify right side
    18,717.59x = 309,480,833.67
  5. Step 5: Solve for x
    x = 309,480,833.67/18,717.59
  6. Step 6: Final answer
    x = 16,534.22

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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.