Home / 12,211.11-18,316.71-2,977.11

Finding the Fourth Proportional to 12,211.11, 18,316.71 and 2,977.11

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Solution

The fourth proportional to 12,211.11, 18,316.71 and 2,977.11 is: 4,465.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,211.11 : 18,316.71 = 2,977.11 : x
  2. Step 2: Convert to fraction form
    12,211.11/18,316.71 = 2,977.11/x
  3. Step 3: Cross multiply
    12,211.11x = 18,316.71 × 2,977.11
  4. Step 4: Simplify right side
    12,211.11x = 54,530,860.51
  5. Step 5: Solve for x
    x = 54,530,860.51/12,211.11
  6. Step 6: Final answer
    x = 4,465.68

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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.