Home / 16,988.12-25,472.21-5,138.33

Finding the Fourth Proportional to 16,988.12, 25,472.21 and 5,138.33

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Solution

The fourth proportional to 16,988.12, 25,472.21 and 5,138.33 is: 7,704.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,988.12 : 25,472.21 = 5,138.33 : x
  2. Step 2: Convert to fraction form
    16,988.12/25,472.21 = 5,138.33/x
  3. Step 3: Cross multiply
    16,988.12x = 25,472.21 × 5,138.33
  4. Step 4: Simplify right side
    16,988.12x = 130,884,467.76
  5. Step 5: Solve for x
    x = 130,884,467.76/16,988.12
  6. Step 6: Final answer
    x = 7,704.47

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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.