Home / 12,111.04-18,166.78-3,346.20

Finding the Fourth Proportional to 12,111.04, 18,166.78 and 3,346.20

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Solution

The fourth proportional to 12,111.04, 18,166.78 and 3,346.20 is: 5,019.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,111.04 : 18,166.78 = 3,346.20 : x
  2. Step 2: Convert to fraction form
    12,111.04/18,166.78 = 3,346.20/x
  3. Step 3: Cross multiply
    12,111.04x = 18,166.78 × 3,346.20
  4. Step 4: Simplify right side
    12,111.04x = 60,789,679.24
  5. Step 5: Solve for x
    x = 60,789,679.24/12,111.04
  6. Step 6: Final answer
    x = 5,019.36

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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.