Home / 11,711.12-17,538.24-6,438.08

Finding the Fourth Proportional to 11,711.12, 17,538.24 and 6,438.08

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Solution

The fourth proportional to 11,711.12, 17,538.24 and 6,438.08 is: 9,641.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,711.12 : 17,538.24 = 6,438.08 : x
  2. Step 2: Convert to fraction form
    11,711.12/17,538.24 = 6,438.08/x
  3. Step 3: Cross multiply
    11,711.12x = 17,538.24 × 6,438.08
  4. Step 4: Simplify right side
    11,711.12x = 112,912,592.18
  5. Step 5: Solve for x
    x = 112,912,592.18/11,711.12
  6. Step 6: Final answer
    x = 9,641.49

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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.