Home / 12,046.86-18,065.81-4,147.17

Finding the Fourth Proportional to 12,046.86, 18,065.81 and 4,147.17

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Solution

The fourth proportional to 12,046.86, 18,065.81 and 4,147.17 is: 6,219.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,046.86 : 18,065.81 = 4,147.17 : x
  2. Step 2: Convert to fraction form
    12,046.86/18,065.81 = 4,147.17/x
  3. Step 3: Cross multiply
    12,046.86x = 18,065.81 × 4,147.17
  4. Step 4: Simplify right side
    12,046.86x = 74,921,964.52
  5. Step 5: Solve for x
    x = 74,921,964.52/12,046.86
  6. Step 6: Final answer
    x = 6,219.21

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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.