Home / 17,381.80-26,034.30-6,988.20

Finding the Fourth Proportional to 17,381.80, 26,034.30 and 6,988.20

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Solution

The fourth proportional to 17,381.80, 26,034.30 and 6,988.20 is: 10,466.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,381.80 : 26,034.30 = 6,988.20 : x
  2. Step 2: Convert to fraction form
    17,381.80/26,034.30 = 6,988.20/x
  3. Step 3: Cross multiply
    17,381.80x = 26,034.30 × 6,988.20
  4. Step 4: Simplify right side
    17,381.80x = 181,932,895.26
  5. Step 5: Solve for x
    x = 181,932,895.26/17,381.80
  6. Step 6: Final answer
    x = 10,466.86

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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.