Home / 8,778.53-13,135.43-5,270.66

Finding the Fourth Proportional to 8,778.53, 13,135.43 and 5,270.66

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Solution

The fourth proportional to 8,778.53, 13,135.43 and 5,270.66 is: 7,886.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,778.53 : 13,135.43 = 5,270.66 : x
  2. Step 2: Convert to fraction form
    8,778.53/13,135.43 = 5,270.66/x
  3. Step 3: Cross multiply
    8,778.53x = 13,135.43 × 5,270.66
  4. Step 4: Simplify right side
    8,778.53x = 69,232,431.50
  5. Step 5: Solve for x
    x = 69,232,431.50/8,778.53
  6. Step 6: Final answer
    x = 7,886.57

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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.