Home / 8,660.40-12,982.85-3,394.18

Finding the Fourth Proportional to 8,660.40, 12,982.85 and 3,394.18

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Solution

The fourth proportional to 8,660.40, 12,982.85 and 3,394.18 is: 5,088.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,660.40 : 12,982.85 = 3,394.18 : x
  2. Step 2: Convert to fraction form
    8,660.40/12,982.85 = 3,394.18/x
  3. Step 3: Cross multiply
    8,660.40x = 12,982.85 × 3,394.18
  4. Step 4: Simplify right side
    8,660.40x = 44,066,129.81
  5. Step 5: Solve for x
    x = 44,066,129.81/8,660.40
  6. Step 6: Final answer
    x = 5,088.23

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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.