Home / 8,971.28-13,451.84-4,292.42

Finding the Fourth Proportional to 8,971.28, 13,451.84 and 4,292.42

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Solution

The fourth proportional to 8,971.28, 13,451.84 and 4,292.42 is: 6,436.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,971.28 : 13,451.84 = 4,292.42 : x
  2. Step 2: Convert to fraction form
    8,971.28/13,451.84 = 4,292.42/x
  3. Step 3: Cross multiply
    8,971.28x = 13,451.84 × 4,292.42
  4. Step 4: Simplify right side
    8,971.28x = 57,740,947.05
  5. Step 5: Solve for x
    x = 57,740,947.05/8,971.28
  6. Step 6: Final answer
    x = 6,436.20

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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.