Home / 8,371.61-12,557.01-3,107.65

Finding the Fourth Proportional to 8,371.61, 12,557.01 and 3,107.65

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Solution

The fourth proportional to 8,371.61, 12,557.01 and 3,107.65 is: 4,661.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,371.61 : 12,557.01 = 3,107.65 : x
  2. Step 2: Convert to fraction form
    8,371.61/12,557.01 = 3,107.65/x
  3. Step 3: Cross multiply
    8,371.61x = 12,557.01 × 3,107.65
  4. Step 4: Simplify right side
    8,371.61x = 39,022,792.13
  5. Step 5: Solve for x
    x = 39,022,792.13/8,371.61
  6. Step 6: Final answer
    x = 4,661.32

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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.