Home / 8,122.02-11,207.61-6,447.48

Finding the Fourth Proportional to 8,122.02, 11,207.61 and 6,447.48

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Solution

The fourth proportional to 8,122.02, 11,207.61 and 6,447.48 is: 8,896.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,122.02 : 11,207.61 = 6,447.48 : x
  2. Step 2: Convert to fraction form
    8,122.02/11,207.61 = 6,447.48/x
  3. Step 3: Cross multiply
    8,122.02x = 11,207.61 × 6,447.48
  4. Step 4: Simplify right side
    8,122.02x = 72,260,841.32
  5. Step 5: Solve for x
    x = 72,260,841.32/8,122.02
  6. Step 6: Final answer
    x = 8,896.91

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Half scale
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Double scale
Find fourth proportional to 8,123.02, 11,208.99 and 6,448.48
Similar ratio
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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.