Home / 18,827.48-28,236.26-8,947.10

Finding the Fourth Proportional to 18,827.48, 28,236.26 and 8,947.10

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Solution

The fourth proportional to 18,827.48, 28,236.26 and 8,947.10 is: 13,418.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,827.48 : 28,236.26 = 8,947.10 : x
  2. Step 2: Convert to fraction form
    18,827.48/28,236.26 = 8,947.10/x
  3. Step 3: Cross multiply
    18,827.48x = 28,236.26 × 8,947.10
  4. Step 4: Simplify right side
    18,827.48x = 252,632,641.85
  5. Step 5: Solve for x
    x = 252,632,641.85/18,827.48
  6. Step 6: Final answer
    x = 13,418.29

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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.