Home / 17,122.26-25,686.20-5,438.28

Finding the Fourth Proportional to 17,122.26, 25,686.20 and 5,438.28

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Solution

The fourth proportional to 17,122.26, 25,686.20 and 5,438.28 is: 8,158.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,122.26 : 25,686.20 = 5,438.28 : x
  2. Step 2: Convert to fraction form
    17,122.26/25,686.20 = 5,438.28/x
  3. Step 3: Cross multiply
    17,122.26x = 25,686.20 × 5,438.28
  4. Step 4: Simplify right side
    17,122.26x = 139,688,747.74
  5. Step 5: Solve for x
    x = 139,688,747.74/17,122.26
  6. Step 6: Final answer
    x = 8,158.31

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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.