Home / 18,689.48-28,034.22-8,829.75

Finding the Fourth Proportional to 18,689.48, 28,034.22 and 8,829.75

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Solution

The fourth proportional to 18,689.48, 28,034.22 and 8,829.75 is: 13,244.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,689.48 : 28,034.22 = 8,829.75 : x
  2. Step 2: Convert to fraction form
    18,689.48/28,034.22 = 8,829.75/x
  3. Step 3: Cross multiply
    18,689.48x = 28,034.22 × 8,829.75
  4. Step 4: Simplify right side
    18,689.48x = 247,535,154.05
  5. Step 5: Solve for x
    x = 247,535,154.05/18,689.48
  6. Step 6: Final answer
    x = 13,244.63

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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.