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Finding the Fourth Proportional to 8,672.31, 13,010.29 and 3,478.19

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Solution

The fourth proportional to 8,672.31, 13,010.29 and 3,478.19 is: 5,218.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,672.31 : 13,010.29 = 3,478.19 : x
  2. Step 2: Convert to fraction form
    8,672.31/13,010.29 = 3,478.19/x
  3. Step 3: Cross multiply
    8,672.31x = 13,010.29 × 3,478.19
  4. Step 4: Simplify right side
    8,672.31x = 45,252,236.74
  5. Step 5: Solve for x
    x = 45,252,236.74/8,672.31
  6. Step 6: Final answer
    x = 5,218.01

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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.