Home / 18,815.12-28,223.08-6,335.52

Finding the Fourth Proportional to 18,815.12, 28,223.08 and 6,335.52

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Solution

The fourth proportional to 18,815.12, 28,223.08 and 6,335.52 is: 9,503.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,815.12 : 28,223.08 = 6,335.52 : x
  2. Step 2: Convert to fraction form
    18,815.12/28,223.08 = 6,335.52/x
  3. Step 3: Cross multiply
    18,815.12x = 28,223.08 × 6,335.52
  4. Step 4: Simplify right side
    18,815.12x = 178,807,887.80
  5. Step 5: Solve for x
    x = 178,807,887.80/18,815.12
  6. Step 6: Final answer
    x = 9,503.41

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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.