Home / 18,788.19-28,184.15-6,945.07

Finding the Fourth Proportional to 18,788.19, 28,184.15 and 6,945.07

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Solution

The fourth proportional to 18,788.19, 28,184.15 and 6,945.07 is: 10,418.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,788.19 : 28,184.15 = 6,945.07 : x
  2. Step 2: Convert to fraction form
    18,788.19/28,184.15 = 6,945.07/x
  3. Step 3: Cross multiply
    18,788.19x = 28,184.15 × 6,945.07
  4. Step 4: Simplify right side
    18,788.19x = 195,740,753.72
  5. Step 5: Solve for x
    x = 195,740,753.72/18,788.19
  6. Step 6: Final answer
    x = 10,418.29

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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.