Home / 8,358.84-12,539.70-3,434.04

Finding the Fourth Proportional to 8,358.84, 12,539.70 and 3,434.04

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Solution

The fourth proportional to 8,358.84, 12,539.70 and 3,434.04 is: 5,151.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,358.84 : 12,539.70 = 3,434.04 : x
  2. Step 2: Convert to fraction form
    8,358.84/12,539.70 = 3,434.04/x
  3. Step 3: Cross multiply
    8,358.84x = 12,539.70 × 3,434.04
  4. Step 4: Simplify right side
    8,358.84x = 43,061,831.39
  5. Step 5: Solve for x
    x = 43,061,831.39/8,358.84
  6. Step 6: Final answer
    x = 5,151.65

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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.