Home / 12,581.24-18,856.74-8,877.92

Finding the Fourth Proportional to 12,581.24, 18,856.74 and 8,877.92

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Solution

The fourth proportional to 12,581.24, 18,856.74 and 8,877.92 is: 13,306.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,581.24 : 18,856.74 = 8,877.92 : x
  2. Step 2: Convert to fraction form
    12,581.24/18,856.74 = 8,877.92/x
  3. Step 3: Cross multiply
    12,581.24x = 18,856.74 × 8,877.92
  4. Step 4: Simplify right side
    12,581.24x = 167,408,629.18
  5. Step 5: Solve for x
    x = 167,408,629.18/12,581.24
  6. Step 6: Final answer
    x = 13,306.21

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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.