Home / 15,869.22-21,849.57-12,080.24

Finding the Fourth Proportional to 15,869.22, 21,849.57 and 12,080.24

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Solution

The fourth proportional to 15,869.22, 21,849.57 and 12,080.24 is: 16,632.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,869.22 : 21,849.57 = 12,080.24 : x
  2. Step 2: Convert to fraction form
    15,869.22/21,849.57 = 12,080.24/x
  3. Step 3: Cross multiply
    15,869.22x = 21,849.57 × 12,080.24
  4. Step 4: Simplify right side
    15,869.22x = 263,948,056.16
  5. Step 5: Solve for x
    x = 263,948,056.16/15,869.22
  6. Step 6: Final answer
    x = 16,632.71

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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.