Home / 8,125.02-11,211.75-6,450.48

Finding the Fourth Proportional to 8,125.02, 11,211.75 and 6,450.48

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Solution

The fourth proportional to 8,125.02, 11,211.75 and 6,450.48 is: 8,901.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,125.02 : 11,211.75 = 6,450.48 : x
  2. Step 2: Convert to fraction form
    8,125.02/11,211.75 = 6,450.48/x
  3. Step 3: Cross multiply
    8,125.02x = 11,211.75 × 6,450.48
  4. Step 4: Simplify right side
    8,125.02x = 72,321,169.14
  5. Step 5: Solve for x
    x = 72,321,169.14/8,125.02
  6. Step 6: Final answer
    x = 8,901.05

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Half scale
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Double scale
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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.