Home / 11,328.30-16,988.41-4,306.44

Finding the Fourth Proportional to 11,328.30, 16,988.41 and 4,306.44

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Solution

The fourth proportional to 11,328.30, 16,988.41 and 4,306.44 is: 6,458.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,328.30 : 16,988.41 = 4,306.44 : x
  2. Step 2: Convert to fraction form
    11,328.30/16,988.41 = 4,306.44/x
  3. Step 3: Cross multiply
    11,328.30x = 16,988.41 × 4,306.44
  4. Step 4: Simplify right side
    11,328.30x = 73,159,637.45
  5. Step 5: Solve for x
    x = 73,159,637.45/11,328.30
  6. Step 6: Final answer
    x = 6,458.13

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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.