Home / 9,515.40-14,273.10-8,494.80

Finding the Fourth Proportional to 9,515.40, 14,273.10 and 8,494.80

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Solution

The fourth proportional to 9,515.40, 14,273.10 and 8,494.80 is: 12,742.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,515.40 : 14,273.10 = 8,494.80 : x
  2. Step 2: Convert to fraction form
    9,515.40/14,273.10 = 8,494.80/x
  3. Step 3: Cross multiply
    9,515.40x = 14,273.10 × 8,494.80
  4. Step 4: Simplify right side
    9,515.40x = 121,247,129.88
  5. Step 5: Solve for x
    x = 121,247,129.88/9,515.40
  6. Step 6: Final answer
    x = 12,742.20

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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.