Home / 11,438.11-17,156.65-3,118.12

Finding the Fourth Proportional to 11,438.11, 17,156.65 and 3,118.12

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Solution

The fourth proportional to 11,438.11, 17,156.65 and 3,118.12 is: 4,677.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,438.11 : 17,156.65 = 3,118.12 : x
  2. Step 2: Convert to fraction form
    11,438.11/17,156.65 = 3,118.12/x
  3. Step 3: Cross multiply
    11,438.11x = 17,156.65 × 3,118.12
  4. Step 4: Simplify right side
    11,438.11x = 53,496,551.01
  5. Step 5: Solve for x
    x = 53,496,551.01/11,438.11
  6. Step 6: Final answer
    x = 4,677.05

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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.