Home / 18,844.40-28,255.50-7,158.44

Finding the Fourth Proportional to 18,844.40, 28,255.50 and 7,158.44

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Solution

The fourth proportional to 18,844.40, 28,255.50 and 7,158.44 is: 10,733.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,844.40 : 28,255.50 = 7,158.44 : x
  2. Step 2: Convert to fraction form
    18,844.40/28,255.50 = 7,158.44/x
  3. Step 3: Cross multiply
    18,844.40x = 28,255.50 × 7,158.44
  4. Step 4: Simplify right side
    18,844.40x = 202,265,301.42
  5. Step 5: Solve for x
    x = 202,265,301.42/18,844.40
  6. Step 6: Final answer
    x = 10,733.44

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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.