Home / 15,910.29-21,964.41-11,215.53

Finding the Fourth Proportional to 15,910.29, 21,964.41 and 11,215.53

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Solution

The fourth proportional to 15,910.29, 21,964.41 and 11,215.53 is: 15,483.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,910.29 : 21,964.41 = 11,215.53 : x
  2. Step 2: Convert to fraction form
    15,910.29/21,964.41 = 11,215.53/x
  3. Step 3: Cross multiply
    15,910.29x = 21,964.41 × 11,215.53
  4. Step 4: Simplify right side
    15,910.29x = 246,342,499.29
  5. Step 5: Solve for x
    x = 246,342,499.29/15,910.29
  6. Step 6: Final answer
    x = 15,483.22

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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.