Home / 10,974.79-16,423.91-8,977.33

Finding the Fourth Proportional to 10,974.79, 16,423.91 and 8,977.33

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Solution

The fourth proportional to 10,974.79, 16,423.91 and 8,977.33 is: 13,434.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,974.79 : 16,423.91 = 8,977.33 : x
  2. Step 2: Convert to fraction form
    10,974.79/16,423.91 = 8,977.33/x
  3. Step 3: Cross multiply
    10,974.79x = 16,423.91 × 8,977.33
  4. Step 4: Simplify right side
    10,974.79x = 147,442,732.95
  5. Step 5: Solve for x
    x = 147,442,732.95/10,974.79
  6. Step 6: Final answer
    x = 13,434.68

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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.