Home / 12,108.74-18,166.03-4,210.11

Finding the Fourth Proportional to 12,108.74, 18,166.03 and 4,210.11

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Solution

The fourth proportional to 12,108.74, 18,166.03 and 4,210.11 is: 6,316.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,108.74 : 18,166.03 = 4,210.11 : x
  2. Step 2: Convert to fraction form
    12,108.74/18,166.03 = 4,210.11/x
  3. Step 3: Cross multiply
    12,108.74x = 18,166.03 × 4,210.11
  4. Step 4: Simplify right side
    12,108.74x = 76,480,984.56
  5. Step 5: Solve for x
    x = 76,480,984.56/12,108.74
  6. Step 6: Final answer
    x = 6,316.18

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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.