Home / 15,422.37-21,282.75-8,348.74

Finding the Fourth Proportional to 15,422.37, 21,282.75 and 8,348.74

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Solution

The fourth proportional to 15,422.37, 21,282.75 and 8,348.74 is: 11,521.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,422.37 : 21,282.75 = 8,348.74 : x
  2. Step 2: Convert to fraction form
    15,422.37/21,282.75 = 8,348.74/x
  3. Step 3: Cross multiply
    15,422.37x = 21,282.75 × 8,348.74
  4. Step 4: Simplify right side
    15,422.37x = 177,684,093.03
  5. Step 5: Solve for x
    x = 177,684,093.03/15,422.37
  6. Step 6: Final answer
    x = 11,521.20

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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.