Home / 18,691.54-28,041.75-5,364.70

Finding the Fourth Proportional to 18,691.54, 28,041.75 and 5,364.70

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Solution

The fourth proportional to 18,691.54, 28,041.75 and 5,364.70 is: 8,048.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,691.54 : 28,041.75 = 5,364.70 : x
  2. Step 2: Convert to fraction form
    18,691.54/28,041.75 = 5,364.70/x
  3. Step 3: Cross multiply
    18,691.54x = 28,041.75 × 5,364.70
  4. Step 4: Simplify right side
    18,691.54x = 150,435,576.23
  5. Step 5: Solve for x
    x = 150,435,576.23/18,691.54
  6. Step 6: Final answer
    x = 8,048.32

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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.