Home / 12,491.77-18,737.66-3,732.84

Finding the Fourth Proportional to 12,491.77, 18,737.66 and 3,732.84

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Solution

The fourth proportional to 12,491.77, 18,737.66 and 3,732.84 is: 5,599.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,491.77 : 18,737.66 = 3,732.84 : x
  2. Step 2: Convert to fraction form
    12,491.77/18,737.66 = 3,732.84/x
  3. Step 3: Cross multiply
    12,491.77x = 18,737.66 × 3,732.84
  4. Step 4: Simplify right side
    12,491.77x = 69,944,686.75
  5. Step 5: Solve for x
    x = 69,944,686.75/12,491.77
  6. Step 6: Final answer
    x = 5,599.26

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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.