Home / 12,164.15-18,238.12-4,371.95

Finding the Fourth Proportional to 12,164.15, 18,238.12 and 4,371.95

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Solution

The fourth proportional to 12,164.15, 18,238.12 and 4,371.95 is: 6,555.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,164.15 : 18,238.12 = 4,371.95 : x
  2. Step 2: Convert to fraction form
    12,164.15/18,238.12 = 4,371.95/x
  3. Step 3: Cross multiply
    12,164.15x = 18,238.12 × 4,371.95
  4. Step 4: Simplify right side
    12,164.15x = 79,736,046.61
  5. Step 5: Solve for x
    x = 79,736,046.61/12,164.15
  6. Step 6: Final answer
    x = 6,555.01

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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.