Home / 13,081.02-18,054.15-8,365.14

Finding the Fourth Proportional to 13,081.02, 18,054.15 and 8,365.14

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Solution

The fourth proportional to 13,081.02, 18,054.15 and 8,365.14 is: 11,545.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,081.02 : 18,054.15 = 8,365.14 : x
  2. Step 2: Convert to fraction form
    13,081.02/18,054.15 = 8,365.14/x
  3. Step 3: Cross multiply
    13,081.02x = 18,054.15 × 8,365.14
  4. Step 4: Simplify right side
    13,081.02x = 151,025,492.33
  5. Step 5: Solve for x
    x = 151,025,492.33/13,081.02
  6. Step 6: Final answer
    x = 11,545.39

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Half scale
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Double scale
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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.