Home / 18,905.25-28,339.09-9,033

Finding the Fourth Proportional to 18,905.25, 28,339.09 and 9,033

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Solution

The fourth proportional to 18,905.25, 28,339.09 and 9,033 is: 13,540.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,905.25 : 28,339.09 = 9,033 : x
  2. Step 2: Convert to fraction form
    18,905.25/28,339.09 = 9,033/x
  3. Step 3: Cross multiply
    18,905.25x = 28,339.09 × 9,033
  4. Step 4: Simplify right side
    18,905.25x = 255,986,977.39
  5. Step 5: Solve for x
    x = 255,986,977.39/18,905.25
  6. Step 6: Final answer
    x = 13,540.52

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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.