Home / 12,216.14-18,284.10-9,278.26

Finding the Fourth Proportional to 12,216.14, 18,284.10 and 9,278.26

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Solution

The fourth proportional to 12,216.14, 18,284.10 and 9,278.26 is: 13,886.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,216.14 : 18,284.10 = 9,278.26 : x
  2. Step 2: Convert to fraction form
    12,216.14/18,284.10 = 9,278.26/x
  3. Step 3: Cross multiply
    12,216.14x = 18,284.10 × 9,278.26
  4. Step 4: Simplify right side
    12,216.14x = 169,644,633.67
  5. Step 5: Solve for x
    x = 169,644,633.67/12,216.14
  6. Step 6: Final answer
    x = 13,886.93

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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.