Home / 12,511.16-17,226.05-10,618.79

Finding the Fourth Proportional to 12,511.16, 17,226.05 and 10,618.79

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Solution

The fourth proportional to 12,511.16, 17,226.05 and 10,618.79 is: 14,620.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,511.16 : 17,226.05 = 10,618.79 : x
  2. Step 2: Convert to fraction form
    12,511.16/17,226.05 = 10,618.79/x
  3. Step 3: Cross multiply
    12,511.16x = 17,226.05 × 10,618.79
  4. Step 4: Simplify right side
    12,511.16x = 182,919,754.39
  5. Step 5: Solve for x
    x = 182,919,754.39/12,511.16
  6. Step 6: Final answer
    x = 14,620.53

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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.