Home / 16,911.42-25,339.42-10,988.09

Finding the Fourth Proportional to 16,911.42, 25,339.42 and 10,988.09

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Solution

The fourth proportional to 16,911.42, 25,339.42 and 10,988.09 is: 16,464.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,911.42 : 25,339.42 = 10,988.09 : x
  2. Step 2: Convert to fraction form
    16,911.42/25,339.42 = 10,988.09/x
  3. Step 3: Cross multiply
    16,911.42x = 25,339.42 × 10,988.09
  4. Step 4: Simplify right side
    16,911.42x = 278,431,747.76
  5. Step 5: Solve for x
    x = 278,431,747.76/16,911.42
  6. Step 6: Final answer
    x = 16,464.13

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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.