Home / 21,298.44-29,392.74-11,867

Finding the Fourth Proportional to 21,298.44, 29,392.74 and 11,867

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Solution

The fourth proportional to 21,298.44, 29,392.74 and 11,867 is: 16,376.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,298.44 : 29,392.74 = 11,867 : x
  2. Step 2: Convert to fraction form
    21,298.44/29,392.74 = 11,867/x
  3. Step 3: Cross multiply
    21,298.44x = 29,392.74 × 11,867
  4. Step 4: Simplify right side
    21,298.44x = 348,803,645.58
  5. Step 5: Solve for x
    x = 348,803,645.58/21,298.44
  6. Step 6: Final answer
    x = 16,376.96

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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.