Home / 11,381.42-17,079.88-6,985.46

Finding the Fourth Proportional to 11,381.42, 17,079.88 and 6,985.46

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Solution

The fourth proportional to 11,381.42, 17,079.88 and 6,985.46 is: 10,482.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,381.42 : 17,079.88 = 6,985.46 : x
  2. Step 2: Convert to fraction form
    11,381.42/17,079.88 = 6,985.46/x
  3. Step 3: Cross multiply
    11,381.42x = 17,079.88 × 6,985.46
  4. Step 4: Simplify right side
    11,381.42x = 119,310,818.54
  5. Step 5: Solve for x
    x = 119,310,818.54/11,381.42
  6. Step 6: Final answer
    x = 10,482.95

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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.