Home / 16,189.88-22,339.14-9,815.72

Finding the Fourth Proportional to 16,189.88, 22,339.14 and 9,815.72

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Solution

The fourth proportional to 16,189.88, 22,339.14 and 9,815.72 is: 13,543.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,189.88 : 22,339.14 = 9,815.72 : x
  2. Step 2: Convert to fraction form
    16,189.88/22,339.14 = 9,815.72/x
  3. Step 3: Cross multiply
    16,189.88x = 22,339.14 × 9,815.72
  4. Step 4: Simplify right side
    16,189.88x = 219,274,743.28
  5. Step 5: Solve for x
    x = 219,274,743.28/16,189.88
  6. Step 6: Final answer
    x = 13,543.94

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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.