Home / 18,859.23-28,296.14-5,711.72

Finding the Fourth Proportional to 18,859.23, 28,296.14 and 5,711.72

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Solution

The fourth proportional to 18,859.23, 28,296.14 and 5,711.72 is: 8,569.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,859.23 : 28,296.14 = 5,711.72 : x
  2. Step 2: Convert to fraction form
    18,859.23/28,296.14 = 5,711.72/x
  3. Step 3: Cross multiply
    18,859.23x = 28,296.14 × 5,711.72
  4. Step 4: Simplify right side
    18,859.23x = 161,619,458.72
  5. Step 5: Solve for x
    x = 161,619,458.72/18,859.23
  6. Step 6: Final answer
    x = 8,569.78

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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.