Home / 8,155.02-12,228.67-3,159.73

Finding the Fourth Proportional to 8,155.02, 12,228.67 and 3,159.73

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Solution

The fourth proportional to 8,155.02, 12,228.67 and 3,159.73 is: 4,738.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,155.02 : 12,228.67 = 3,159.73 : x
  2. Step 2: Convert to fraction form
    8,155.02/12,228.67 = 3,159.73/x
  3. Step 3: Cross multiply
    8,155.02x = 12,228.67 × 3,159.73
  4. Step 4: Simplify right side
    8,155.02x = 38,639,279.66
  5. Step 5: Solve for x
    x = 38,639,279.66/8,155.02
  6. Step 6: Final answer
    x = 4,738.10

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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.