Home / 18,701.28-28,048.88-6,218.37

Finding the Fourth Proportional to 18,701.28, 28,048.88 and 6,218.37

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Solution

The fourth proportional to 18,701.28, 28,048.88 and 6,218.37 is: 9,326.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,701.28 : 28,048.88 = 6,218.37 : x
  2. Step 2: Convert to fraction form
    18,701.28/28,048.88 = 6,218.37/x
  3. Step 3: Cross multiply
    18,701.28x = 28,048.88 × 6,218.37
  4. Step 4: Simplify right side
    18,701.28x = 174,418,329.47
  5. Step 5: Solve for x
    x = 174,418,329.47/18,701.28
  6. Step 6: Final answer
    x = 9,326.54

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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.