Home / 11,862.10-17,771.55-9,658.90

Finding the Fourth Proportional to 11,862.10, 17,771.55 and 9,658.90

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Solution

The fourth proportional to 11,862.10, 17,771.55 and 9,658.90 is: 14,470.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,862.10 : 17,771.55 = 9,658.90 : x
  2. Step 2: Convert to fraction form
    11,862.10/17,771.55 = 9,658.90/x
  3. Step 3: Cross multiply
    11,862.10x = 17,771.55 × 9,658.90
  4. Step 4: Simplify right side
    11,862.10x = 171,653,624.30
  5. Step 5: Solve for x
    x = 171,653,624.30/11,862.10
  6. Step 6: Final answer
    x = 14,470.76

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1.5x scale

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.