Home / 8,459.22-12,688.83-2,615.70

Finding the Fourth Proportional to 8,459.22, 12,688.83 and 2,615.70

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Solution

The fourth proportional to 8,459.22, 12,688.83 and 2,615.70 is: 3,923.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,459.22 : 12,688.83 = 2,615.70 : x
  2. Step 2: Convert to fraction form
    8,459.22/12,688.83 = 2,615.70/x
  3. Step 3: Cross multiply
    8,459.22x = 12,688.83 × 2,615.70
  4. Step 4: Simplify right side
    8,459.22x = 33,190,172.63
  5. Step 5: Solve for x
    x = 33,190,172.63/8,459.22
  6. Step 6: Final answer
    x = 3,923.55

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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.