Home / 8,078.40-11,147.16-4,675.98

Finding the Fourth Proportional to 8,078.40, 11,147.16 and 4,675.98

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Solution

The fourth proportional to 8,078.40, 11,147.16 and 4,675.98 is: 6,452.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,078.40 : 11,147.16 = 4,675.98 : x
  2. Step 2: Convert to fraction form
    8,078.40/11,147.16 = 4,675.98/x
  3. Step 3: Cross multiply
    8,078.40x = 11,147.16 × 4,675.98
  4. Step 4: Simplify right side
    8,078.40x = 52,123,897.22
  5. Step 5: Solve for x
    x = 52,123,897.22/8,078.40
  6. Step 6: Final answer
    x = 6,452.26

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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.