Home / 15,414.39-21,272.29-9,362.59

Finding the Fourth Proportional to 15,414.39, 21,272.29 and 9,362.59

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Solution

The fourth proportional to 15,414.39, 21,272.29 and 9,362.59 is: 12,920.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,414.39 : 21,272.29 = 9,362.59 : x
  2. Step 2: Convert to fraction form
    15,414.39/21,272.29 = 9,362.59/x
  3. Step 3: Cross multiply
    15,414.39x = 21,272.29 × 9,362.59
  4. Step 4: Simplify right side
    15,414.39x = 199,163,706.22
  5. Step 5: Solve for x
    x = 199,163,706.22/15,414.39
  6. Step 6: Final answer
    x = 12,920.63

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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.