Home / 18,492.39-25,518.69-11,334.20

Finding the Fourth Proportional to 18,492.39, 25,518.69 and 11,334.20

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Solution

The fourth proportional to 18,492.39, 25,518.69 and 11,334.20 is: 15,640.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,492.39 : 25,518.69 = 11,334.20 : x
  2. Step 2: Convert to fraction form
    18,492.39/25,518.69 = 11,334.20/x
  3. Step 3: Cross multiply
    18,492.39x = 25,518.69 × 11,334.20
  4. Step 4: Simplify right side
    18,492.39x = 289,233,808.60
  5. Step 5: Solve for x
    x = 289,233,808.60/18,492.39
  6. Step 6: Final answer
    x = 15,640.69

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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.