Home / 8,722.38-13,083.45-2,148.62

Finding the Fourth Proportional to 8,722.38, 13,083.45 and 2,148.62

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Solution

The fourth proportional to 8,722.38, 13,083.45 and 2,148.62 is: 3,222.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,722.38 : 13,083.45 = 2,148.62 : x
  2. Step 2: Convert to fraction form
    8,722.38/13,083.45 = 2,148.62/x
  3. Step 3: Cross multiply
    8,722.38x = 13,083.45 × 2,148.62
  4. Step 4: Simplify right side
    8,722.38x = 28,111,362.34
  5. Step 5: Solve for x
    x = 28,111,362.34/8,722.38
  6. Step 6: Final answer
    x = 3,222.90

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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.