Home / 8,350.72-11,518.78-5,370.44

Finding the Fourth Proportional to 8,350.72, 11,518.78 and 5,370.44

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Solution

The fourth proportional to 8,350.72, 11,518.78 and 5,370.44 is: 7,407.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,350.72 : 11,518.78 = 5,370.44 : x
  2. Step 2: Convert to fraction form
    8,350.72/11,518.78 = 5,370.44/x
  3. Step 3: Cross multiply
    8,350.72x = 11,518.78 × 5,370.44
  4. Step 4: Simplify right side
    8,350.72x = 61,860,916.86
  5. Step 5: Solve for x
    x = 61,860,916.86/8,350.72
  6. Step 6: Final answer
    x = 7,407.85

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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.