Home / 8,499.36-12,756.80-4,342.25

Finding the Fourth Proportional to 8,499.36, 12,756.80 and 4,342.25

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Solution

The fourth proportional to 8,499.36, 12,756.80 and 4,342.25 is: 6,517.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,499.36 : 12,756.80 = 4,342.25 : x
  2. Step 2: Convert to fraction form
    8,499.36/12,756.80 = 4,342.25/x
  3. Step 3: Cross multiply
    8,499.36x = 12,756.80 × 4,342.25
  4. Step 4: Simplify right side
    8,499.36x = 55,393,129.30
  5. Step 5: Solve for x
    x = 55,393,129.30/8,499.36
  6. Step 6: Final answer
    x = 6,517.33

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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.