Home / 19,155.15-28,697.09-10,397.43

Finding the Fourth Proportional to 19,155.15, 28,697.09 and 10,397.43

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Solution

The fourth proportional to 19,155.15, 28,697.09 and 10,397.43 is: 15,576.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,155.15 : 28,697.09 = 10,397.43 : x
  2. Step 2: Convert to fraction form
    19,155.15/28,697.09 = 10,397.43/x
  3. Step 3: Cross multiply
    19,155.15x = 28,697.09 × 10,397.43
  4. Step 4: Simplify right side
    19,155.15x = 298,375,932.49
  5. Step 5: Solve for x
    x = 298,375,932.49/19,155.15
  6. Step 6: Final answer
    x = 15,576.80

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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.