Home / 8,378.30-11,567.48-5,194.98

Finding the Fourth Proportional to 8,378.30, 11,567.48 and 5,194.98

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Solution

The fourth proportional to 8,378.30, 11,567.48 and 5,194.98 is: 7,172.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,378.30 : 11,567.48 = 5,194.98 : x
  2. Step 2: Convert to fraction form
    8,378.30/11,567.48 = 5,194.98/x
  3. Step 3: Cross multiply
    8,378.30x = 11,567.48 × 5,194.98
  4. Step 4: Simplify right side
    8,378.30x = 60,092,801.28
  5. Step 5: Solve for x
    x = 60,092,801.28/8,378.30
  6. Step 6: Final answer
    x = 7,172.43

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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.