Home / 8,534.40-12,801.60-5,236.80

Finding the Fourth Proportional to 8,534.40, 12,801.60 and 5,236.80

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Solution

The fourth proportional to 8,534.40, 12,801.60 and 5,236.80 is: 7,855.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,534.40 : 12,801.60 = 5,236.80 : x
  2. Step 2: Convert to fraction form
    8,534.40/12,801.60 = 5,236.80/x
  3. Step 3: Cross multiply
    8,534.40x = 12,801.60 × 5,236.80
  4. Step 4: Simplify right side
    8,534.40x = 67,039,418.88
  5. Step 5: Solve for x
    x = 67,039,418.88/8,534.40
  6. Step 6: Final answer
    x = 7,855.20

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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.