Home / 18,970.27-26,180.38-11,013.71

Finding the Fourth Proportional to 18,970.27, 26,180.38 and 11,013.71

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Solution

The fourth proportional to 18,970.27, 26,180.38 and 11,013.71 is: 15,199.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,970.27 : 26,180.38 = 11,013.71 : x
  2. Step 2: Convert to fraction form
    18,970.27/26,180.38 = 11,013.71/x
  3. Step 3: Cross multiply
    18,970.27x = 26,180.38 × 11,013.71
  4. Step 4: Simplify right side
    18,970.27x = 288,342,995.88
  5. Step 5: Solve for x
    x = 288,342,995.88/18,970.27
  6. Step 6: Final answer
    x = 15,199.73

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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.