Home / 15,422.19-21,282.63-8,348.62

Finding the Fourth Proportional to 15,422.19, 21,282.63 and 8,348.62

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Solution

The fourth proportional to 15,422.19, 21,282.63 and 8,348.62 is: 11,521.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,422.19 : 21,282.63 = 8,348.62 : x
  2. Step 2: Convert to fraction form
    15,422.19/21,282.63 = 8,348.62/x
  3. Step 3: Cross multiply
    15,422.19x = 21,282.63 × 8,348.62
  4. Step 4: Simplify right side
    15,422.19x = 177,680,484.06
  5. Step 5: Solve for x
    x = 177,680,484.06/15,422.19
  6. Step 6: Final answer
    x = 11,521.09

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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.