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Finding the Fourth Proportional to 10,959.10, 16,438.65 and 3,168.70

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Solution

The fourth proportional to 10,959.10, 16,438.65 and 3,168.70 is: 4,753.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,959.10 : 16,438.65 = 3,168.70 : x
  2. Step 2: Convert to fraction form
    10,959.10/16,438.65 = 3,168.70/x
  3. Step 3: Cross multiply
    10,959.10x = 16,438.65 × 3,168.70
  4. Step 4: Simplify right side
    10,959.10x = 52,089,150.26
  5. Step 5: Solve for x
    x = 52,089,150.26/10,959.10
  6. Step 6: Final answer
    x = 4,753.05

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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.