Home / 18,859.21-28,292.27-6,209.69

Finding the Fourth Proportional to 18,859.21, 28,292.27 and 6,209.69

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Solution

The fourth proportional to 18,859.21, 28,292.27 and 6,209.69 is: 9,315.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,859.21 : 28,292.27 = 6,209.69 : x
  2. Step 2: Convert to fraction form
    18,859.21/28,292.27 = 6,209.69/x
  3. Step 3: Cross multiply
    18,859.21x = 28,292.27 × 6,209.69
  4. Step 4: Simplify right side
    18,859.21x = 175,686,053.59
  5. Step 5: Solve for x
    x = 175,686,053.59/18,859.21
  6. Step 6: Final answer
    x = 9,315.66

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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.