Home / 8,331.36-12,497.04-2,487.78

Finding the Fourth Proportional to 8,331.36, 12,497.04 and 2,487.78

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Solution

The fourth proportional to 8,331.36, 12,497.04 and 2,487.78 is: 3,731.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,331.36 : 12,497.04 = 2,487.78 : x
  2. Step 2: Convert to fraction form
    8,331.36/12,497.04 = 2,487.78/x
  3. Step 3: Cross multiply
    8,331.36x = 12,497.04 × 2,487.78
  4. Step 4: Simplify right side
    8,331.36x = 31,089,886.17
  5. Step 5: Solve for x
    x = 31,089,886.17/8,331.36
  6. Step 6: Final answer
    x = 3,731.67

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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.