Home / 11,005.20-16,515.90-7,306.20

Finding the Fourth Proportional to 11,005.20, 16,515.90 and 7,306.20

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Solution

The fourth proportional to 11,005.20, 16,515.90 and 7,306.20 is: 10,964.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,005.20 : 16,515.90 = 7,306.20 : x
  2. Step 2: Convert to fraction form
    11,005.20/16,515.90 = 7,306.20/x
  3. Step 3: Cross multiply
    11,005.20x = 16,515.90 × 7,306.20
  4. Step 4: Simplify right side
    11,005.20x = 120,668,468.58
  5. Step 5: Solve for x
    x = 120,668,468.58/11,005.20
  6. Step 6: Final answer
    x = 10,964.68

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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.