Home / 12,282.05-18,417.20-5,616.56

Finding the Fourth Proportional to 12,282.05, 18,417.20 and 5,616.56

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Solution

The fourth proportional to 12,282.05, 18,417.20 and 5,616.56 is: 8,422.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,282.05 : 18,417.20 = 5,616.56 : x
  2. Step 2: Convert to fraction form
    12,282.05/18,417.20 = 5,616.56/x
  3. Step 3: Cross multiply
    12,282.05x = 18,417.20 × 5,616.56
  4. Step 4: Simplify right side
    12,282.05x = 103,441,188.66
  5. Step 5: Solve for x
    x = 103,441,188.66/12,282.05
  6. Step 6: Final answer
    x = 8,422.15

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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.