Home / 15,306.54-21,131.07-10,297.11

Finding the Fourth Proportional to 15,306.54, 21,131.07 and 10,297.11

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Solution

The fourth proportional to 15,306.54, 21,131.07 and 10,297.11 is: 14,215.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,306.54 : 21,131.07 = 10,297.11 : x
  2. Step 2: Convert to fraction form
    15,306.54/21,131.07 = 10,297.11/x
  3. Step 3: Cross multiply
    15,306.54x = 21,131.07 × 10,297.11
  4. Step 4: Simplify right side
    15,306.54x = 217,588,952.21
  5. Step 5: Solve for x
    x = 217,588,952.21/15,306.54
  6. Step 6: Final answer
    x = 14,215.42

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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.