Home / 18,859.26-28,289.25-5,711.58

Finding the Fourth Proportional to 18,859.26, 28,289.25 and 5,711.58

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Solution

The fourth proportional to 18,859.26, 28,289.25 and 5,711.58 is: 8,567.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,859.26 : 28,289.25 = 5,711.58 : x
  2. Step 2: Convert to fraction form
    18,859.26/28,289.25 = 5,711.58/x
  3. Step 3: Cross multiply
    18,859.26x = 28,289.25 × 5,711.58
  4. Step 4: Simplify right side
    18,859.26x = 161,576,314.52
  5. Step 5: Solve for x
    x = 161,576,314.52/18,859.26
  6. Step 6: Final answer
    x = 8,567.48

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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.