Home / 8,114.40-12,147.30-7,633.80

Finding the Fourth Proportional to 8,114.40, 12,147.30 and 7,633.80

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Solution

The fourth proportional to 8,114.40, 12,147.30 and 7,633.80 is: 11,427.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,114.40 : 12,147.30 = 7,633.80 : x
  2. Step 2: Convert to fraction form
    8,114.40/12,147.30 = 7,633.80/x
  3. Step 3: Cross multiply
    8,114.40x = 12,147.30 × 7,633.80
  4. Step 4: Simplify right side
    8,114.40x = 92,730,058.74
  5. Step 5: Solve for x
    x = 92,730,058.74/8,114.40
  6. Step 6: Final answer
    x = 11,427.84

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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.