Home / 15,286.24-21,091-8,824.29

Finding the Fourth Proportional to 15,286.24, 21,091 and 8,824.29

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Solution

The fourth proportional to 15,286.24, 21,091 and 8,824.29 is: 12,175.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,286.24 : 21,091 = 8,824.29 : x
  2. Step 2: Convert to fraction form
    15,286.24/21,091 = 8,824.29/x
  3. Step 3: Cross multiply
    15,286.24x = 21,091 × 8,824.29
  4. Step 4: Simplify right side
    15,286.24x = 186,113,100.39
  5. Step 5: Solve for x
    x = 186,113,100.39/15,286.24
  6. Step 6: Final answer
    x = 12,175.20

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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.