Home / 10,290.07-15,435.11-4,138.39

Finding the Fourth Proportional to 10,290.07, 15,435.11 and 4,138.39

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Solution

The fourth proportional to 10,290.07, 15,435.11 and 4,138.39 is: 6,207.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,290.07 : 15,435.11 = 4,138.39 : x
  2. Step 2: Convert to fraction form
    10,290.07/15,435.11 = 4,138.39/x
  3. Step 3: Cross multiply
    10,290.07x = 15,435.11 × 4,138.39
  4. Step 4: Simplify right side
    10,290.07x = 63,876,504.87
  5. Step 5: Solve for x
    x = 63,876,504.87/10,290.07
  6. Step 6: Final answer
    x = 6,207.59

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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.