Home / 8,618.60-12,916.92-3,686.96

Finding the Fourth Proportional to 8,618.60, 12,916.92 and 3,686.96

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Solution

The fourth proportional to 8,618.60, 12,916.92 and 3,686.96 is: 5,525.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,618.60 : 12,916.92 = 3,686.96 : x
  2. Step 2: Convert to fraction form
    8,618.60/12,916.92 = 3,686.96/x
  3. Step 3: Cross multiply
    8,618.60x = 12,916.92 × 3,686.96
  4. Step 4: Simplify right side
    8,618.60x = 47,624,167.36
  5. Step 5: Solve for x
    x = 47,624,167.36/8,618.60
  6. Step 6: Final answer
    x = 5,525.74

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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.