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Finding the Fourth Proportional to 10,672.90, 16,003.35 and 4,099.30

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Solution

The fourth proportional to 10,672.90, 16,003.35 and 4,099.30 is: 6,146.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,672.90 : 16,003.35 = 4,099.30 : x
  2. Step 2: Convert to fraction form
    10,672.90/16,003.35 = 4,099.30/x
  3. Step 3: Cross multiply
    10,672.90x = 16,003.35 × 4,099.30
  4. Step 4: Simplify right side
    10,672.90x = 65,602,532.66
  5. Step 5: Solve for x
    x = 65,602,532.66/10,672.90
  6. Step 6: Final answer
    x = 6,146.65

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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.