Home / 7,808.04-11,717.40-3,426.72

Finding the Fourth Proportional to 7,808.04, 11,717.40 and 3,426.72

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Solution

The fourth proportional to 7,808.04, 11,717.40 and 3,426.72 is: 5,142.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,808.04 : 11,717.40 = 3,426.72 : x
  2. Step 2: Convert to fraction form
    7,808.04/11,717.40 = 3,426.72/x
  3. Step 3: Cross multiply
    7,808.04x = 11,717.40 × 3,426.72
  4. Step 4: Simplify right side
    7,808.04x = 40,152,248.93
  5. Step 5: Solve for x
    x = 40,152,248.93/7,808.04
  6. Step 6: Final answer
    x = 5,142.42

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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.