Home / 8,408.31-12,581.33-5,263.26

Finding the Fourth Proportional to 8,408.31, 12,581.33 and 5,263.26

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Solution

The fourth proportional to 8,408.31, 12,581.33 and 5,263.26 is: 7,875.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,408.31 : 12,581.33 = 5,263.26 : x
  2. Step 2: Convert to fraction form
    8,408.31/12,581.33 = 5,263.26/x
  3. Step 3: Cross multiply
    8,408.31x = 12,581.33 × 5,263.26
  4. Step 4: Simplify right side
    8,408.31x = 66,218,784.62
  5. Step 5: Solve for x
    x = 66,218,784.62/8,408.31
  6. Step 6: Final answer
    x = 7,875.40

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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.