Home / 12,316.50-18,474.75-5,391.02

Finding the Fourth Proportional to 12,316.50, 18,474.75 and 5,391.02

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Solution

The fourth proportional to 12,316.50, 18,474.75 and 5,391.02 is: 8,086.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,316.50 : 18,474.75 = 5,391.02 : x
  2. Step 2: Convert to fraction form
    12,316.50/18,474.75 = 5,391.02/x
  3. Step 3: Cross multiply
    12,316.50x = 18,474.75 × 5,391.02
  4. Step 4: Simplify right side
    12,316.50x = 99,597,746.75
  5. Step 5: Solve for x
    x = 99,597,746.75/12,316.50
  6. Step 6: Final answer
    x = 8,086.53

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.