Home / 10,815.35-16,206.57-8,028.95

Finding the Fourth Proportional to 10,815.35, 16,206.57 and 8,028.95

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Solution

The fourth proportional to 10,815.35, 16,206.57 and 8,028.95 is: 12,031.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,815.35 : 16,206.57 = 8,028.95 : x
  2. Step 2: Convert to fraction form
    10,815.35/16,206.57 = 8,028.95/x
  3. Step 3: Cross multiply
    10,815.35x = 16,206.57 × 8,028.95
  4. Step 4: Simplify right side
    10,815.35x = 130,121,659.17
  5. Step 5: Solve for x
    x = 130,121,659.17/10,815.35
  6. Step 6: Final answer
    x = 12,031.21

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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.