Home / 19,238.20-28,862.70-9,377.80

Finding the Fourth Proportional to 19,238.20, 28,862.70 and 9,377.80

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Solution

The fourth proportional to 19,238.20, 28,862.70 and 9,377.80 is: 14,069.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,238.20 : 28,862.70 = 9,377.80 : x
  2. Step 2: Convert to fraction form
    19,238.20/28,862.70 = 9,377.80/x
  3. Step 3: Cross multiply
    19,238.20x = 28,862.70 × 9,377.80
  4. Step 4: Simplify right side
    19,238.20x = 270,668,628.06
  5. Step 5: Solve for x
    x = 270,668,628.06/19,238.20
  6. Step 6: Final answer
    x = 14,069.33

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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.