Home / 13,916.92-20,860.80-8,651.92

Finding the Fourth Proportional to 13,916.92, 20,860.80 and 8,651.92

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Solution

The fourth proportional to 13,916.92, 20,860.80 and 8,651.92 is: 12,968.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,916.92 : 20,860.80 = 8,651.92 : x
  2. Step 2: Convert to fraction form
    13,916.92/20,860.80 = 8,651.92/x
  3. Step 3: Cross multiply
    13,916.92x = 20,860.80 × 8,651.92
  4. Step 4: Simplify right side
    13,916.92x = 180,485,972.74
  5. Step 5: Solve for x
    x = 180,485,972.74/13,916.92
  6. Step 6: Final answer
    x = 12,968.82

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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.