Home / 7,400.08-10,211.80-4,042.74

Finding the Fourth Proportional to 7,400.08, 10,211.80 and 4,042.74

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Solution

The fourth proportional to 7,400.08, 10,211.80 and 4,042.74 is: 5,578.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,400.08 : 10,211.80 = 4,042.74 : x
  2. Step 2: Convert to fraction form
    7,400.08/10,211.80 = 4,042.74/x
  3. Step 3: Cross multiply
    7,400.08x = 10,211.80 × 4,042.74
  4. Step 4: Simplify right side
    7,400.08x = 41,283,652.33
  5. Step 5: Solve for x
    x = 41,283,652.33/7,400.08
  6. Step 6: Final answer
    x = 5,578.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.