Home / 8,537.38-12,811.85-2,990.77

Finding the Fourth Proportional to 8,537.38, 12,811.85 and 2,990.77

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Solution

The fourth proportional to 8,537.38, 12,811.85 and 2,990.77 is: 4,488.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,537.38 : 12,811.85 = 2,990.77 : x
  2. Step 2: Convert to fraction form
    8,537.38/12,811.85 = 2,990.77/x
  3. Step 3: Cross multiply
    8,537.38x = 12,811.85 × 2,990.77
  4. Step 4: Simplify right side
    8,537.38x = 38,317,217.61
  5. Step 5: Solve for x
    x = 38,317,217.61/8,537.38
  6. Step 6: Final answer
    x = 4,488.17

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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.