Home / 15,300.33-21,132.30-12,244.79

Finding the Fourth Proportional to 15,300.33, 21,132.30 and 12,244.79

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Solution

The fourth proportional to 15,300.33, 21,132.30 and 12,244.79 is: 16,912.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,300.33 : 21,132.30 = 12,244.79 : x
  2. Step 2: Convert to fraction form
    15,300.33/21,132.30 = 12,244.79/x
  3. Step 3: Cross multiply
    15,300.33x = 21,132.30 × 12,244.79
  4. Step 4: Simplify right side
    15,300.33x = 258,760,674.47
  5. Step 5: Solve for x
    x = 258,760,674.47/15,300.33
  6. Step 6: Final answer
    x = 16,912.10

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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.