Home / 10,100.36-15,148.11-4,253.78

Finding the Fourth Proportional to 10,100.36, 15,148.11 and 4,253.78

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Solution

The fourth proportional to 10,100.36, 15,148.11 and 4,253.78 is: 6,379.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,100.36 : 15,148.11 = 4,253.78 : x
  2. Step 2: Convert to fraction form
    10,100.36/15,148.11 = 4,253.78/x
  3. Step 3: Cross multiply
    10,100.36x = 15,148.11 × 4,253.78
  4. Step 4: Simplify right side
    10,100.36x = 64,436,727.36
  5. Step 5: Solve for x
    x = 64,436,727.36/10,100.36
  6. Step 6: Final answer
    x = 6,379.65

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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.