Home / 12,538.92-17,295.48-8,055.60

Finding the Fourth Proportional to 12,538.92, 17,295.48 and 8,055.60

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Solution

The fourth proportional to 12,538.92, 17,295.48 and 8,055.60 is: 11,111.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,538.92 : 17,295.48 = 8,055.60 : x
  2. Step 2: Convert to fraction form
    12,538.92/17,295.48 = 8,055.60/x
  3. Step 3: Cross multiply
    12,538.92x = 17,295.48 × 8,055.60
  4. Step 4: Simplify right side
    12,538.92x = 139,325,468.69
  5. Step 5: Solve for x
    x = 139,325,468.69/12,538.92
  6. Step 6: Final answer
    x = 11,111.44

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Half scale
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Double scale
Find fourth proportional to 12,539.92, 17,296.86 and 8,056.60
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.