Home / 11,265.70-16,898.55-8,155.30

Finding the Fourth Proportional to 11,265.70, 16,898.55 and 8,155.30

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Solution

The fourth proportional to 11,265.70, 16,898.55 and 8,155.30 is: 12,232.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,265.70 : 16,898.55 = 8,155.30 : x
  2. Step 2: Convert to fraction form
    11,265.70/16,898.55 = 8,155.30/x
  3. Step 3: Cross multiply
    11,265.70x = 16,898.55 × 8,155.30
  4. Step 4: Simplify right side
    11,265.70x = 137,812,744.82
  5. Step 5: Solve for x
    x = 137,812,744.82/11,265.70
  6. Step 6: Final answer
    x = 12,232.95

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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.