Home / 13,216.30-19,822.51-3,853.80

Finding the Fourth Proportional to 13,216.30, 19,822.51 and 3,853.80

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Solution

The fourth proportional to 13,216.30, 19,822.51 and 3,853.80 is: 5,780.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,216.30 : 19,822.51 = 3,853.80 : x
  2. Step 2: Convert to fraction form
    13,216.30/19,822.51 = 3,853.80/x
  3. Step 3: Cross multiply
    13,216.30x = 19,822.51 × 3,853.80
  4. Step 4: Simplify right side
    13,216.30x = 76,391,989.04
  5. Step 5: Solve for x
    x = 76,391,989.04/13,216.30
  6. Step 6: Final answer
    x = 5,780.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.