Home / 18,932.86-26,132.79-12,663.46

Finding the Fourth Proportional to 18,932.86, 26,132.79 and 12,663.46

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Solution

The fourth proportional to 18,932.86, 26,132.79 and 12,663.46 is: 17,479.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,932.86 : 26,132.79 = 12,663.46 : x
  2. Step 2: Convert to fraction form
    18,932.86/26,132.79 = 12,663.46/x
  3. Step 3: Cross multiply
    18,932.86x = 26,132.79 × 12,663.46
  4. Step 4: Simplify right side
    18,932.86x = 330,931,540.85
  5. Step 5: Solve for x
    x = 330,931,540.85/18,932.86
  6. Step 6: Final answer
    x = 17,479.22

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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.