Home / 18,957.03-28,434.39-5,809.38

Finding the Fourth Proportional to 18,957.03, 28,434.39 and 5,809.38

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Solution

The fourth proportional to 18,957.03, 28,434.39 and 5,809.38 is: 8,713.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,957.03 : 28,434.39 = 5,809.38 : x
  2. Step 2: Convert to fraction form
    18,957.03/28,434.39 = 5,809.38/x
  3. Step 3: Cross multiply
    18,957.03x = 28,434.39 × 5,809.38
  4. Step 4: Simplify right side
    18,957.03x = 165,186,034.41
  5. Step 5: Solve for x
    x = 165,186,034.41/18,957.03
  6. Step 6: Final answer
    x = 8,713.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.