Home / 10,211.78-15,319.85-3,548.48

Finding the Fourth Proportional to 10,211.78, 15,319.85 and 3,548.48

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Solution

The fourth proportional to 10,211.78, 15,319.85 and 3,548.48 is: 5,323.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,211.78 : 15,319.85 = 3,548.48 : x
  2. Step 2: Convert to fraction form
    10,211.78/15,319.85 = 3,548.48/x
  3. Step 3: Cross multiply
    10,211.78x = 15,319.85 × 3,548.48
  4. Step 4: Simplify right side
    10,211.78x = 54,362,201.89
  5. Step 5: Solve for x
    x = 54,362,201.89/10,211.78
  6. Step 6: Final answer
    x = 5,323.48

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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.