Home / 12,488.28-17,236.24-8,017.68

Finding the Fourth Proportional to 12,488.28, 17,236.24 and 8,017.68

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Solution

The fourth proportional to 12,488.28, 17,236.24 and 8,017.68 is: 11,065.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,488.28 : 17,236.24 = 8,017.68 : x
  2. Step 2: Convert to fraction form
    12,488.28/17,236.24 = 8,017.68/x
  3. Step 3: Cross multiply
    12,488.28x = 17,236.24 × 8,017.68
  4. Step 4: Simplify right side
    12,488.28x = 138,194,656.72
  5. Step 5: Solve for x
    x = 138,194,656.72/12,488.28
  6. Step 6: Final answer
    x = 11,065.95

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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.