Home / 18,853.12-28,283.33-7,165.43

Finding the Fourth Proportional to 18,853.12, 28,283.33 and 7,165.43

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Solution

The fourth proportional to 18,853.12, 28,283.33 and 7,165.43 is: 10,749.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,853.12 : 28,283.33 = 7,165.43 : x
  2. Step 2: Convert to fraction form
    18,853.12/28,283.33 = 7,165.43/x
  3. Step 3: Cross multiply
    18,853.12x = 28,283.33 × 7,165.43
  4. Step 4: Simplify right side
    18,853.12x = 202,662,221.28
  5. Step 5: Solve for x
    x = 202,662,221.28/18,853.12
  6. Step 6: Final answer
    x = 10,749.53

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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.