Home / 18,801.20-28,193.70-9,437.60

Finding the Fourth Proportional to 18,801.20, 28,193.70 and 9,437.60

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Solution

The fourth proportional to 18,801.20, 28,193.70 and 9,437.60 is: 14,152.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,801.20 : 28,193.70 = 9,437.60 : x
  2. Step 2: Convert to fraction form
    18,801.20/28,193.70 = 9,437.60/x
  3. Step 3: Cross multiply
    18,801.20x = 28,193.70 × 9,437.60
  4. Step 4: Simplify right side
    18,801.20x = 266,080,863.12
  5. Step 5: Solve for x
    x = 266,080,863.12/18,801.20
  6. Step 6: Final answer
    x = 14,152.33

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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.