Home / 14,442.08-19,929.11-8,391.78

Finding the Fourth Proportional to 14,442.08, 19,929.11 and 8,391.78

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Solution

The fourth proportional to 14,442.08, 19,929.11 and 8,391.78 is: 11,580.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,442.08 : 19,929.11 = 8,391.78 : x
  2. Step 2: Convert to fraction form
    14,442.08/19,929.11 = 8,391.78/x
  3. Step 3: Cross multiply
    14,442.08x = 19,929.11 × 8,391.78
  4. Step 4: Simplify right side
    14,442.08x = 167,240,727.70
  5. Step 5: Solve for x
    x = 167,240,727.70/14,442.08
  6. Step 6: Final answer
    x = 11,580.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.