Home / 8,447.04-12,660.51-3,938.01

Finding the Fourth Proportional to 8,447.04, 12,660.51 and 3,938.01

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Solution

The fourth proportional to 8,447.04, 12,660.51 and 3,938.01 is: 5,902.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,447.04 : 12,660.51 = 3,938.01 : x
  2. Step 2: Convert to fraction form
    8,447.04/12,660.51 = 3,938.01/x
  3. Step 3: Cross multiply
    8,447.04x = 12,660.51 × 3,938.01
  4. Step 4: Simplify right side
    8,447.04x = 49,857,214.99
  5. Step 5: Solve for x
    x = 49,857,214.99/8,447.04
  6. Step 6: Final answer
    x = 5,902.33

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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.