Home / 12,214.80-16,864.20-7,500.60

Finding the Fourth Proportional to 12,214.80, 16,864.20 and 7,500.60

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Solution

The fourth proportional to 12,214.80, 16,864.20 and 7,500.60 is: 10,355.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,214.80 : 16,864.20 = 7,500.60 : x
  2. Step 2: Convert to fraction form
    12,214.80/16,864.20 = 7,500.60/x
  3. Step 3: Cross multiply
    12,214.80x = 16,864.20 × 7,500.60
  4. Step 4: Simplify right side
    12,214.80x = 126,491,618.52
  5. Step 5: Solve for x
    x = 126,491,618.52/12,214.80
  6. Step 6: Final answer
    x = 10,355.60

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1.5x scale

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.