Home / 11,553.40-17,318.94-7,381.72

Finding the Fourth Proportional to 11,553.40, 17,318.94 and 7,381.72

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Solution

The fourth proportional to 11,553.40, 17,318.94 and 7,381.72 is: 11,065.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,553.40 : 17,318.94 = 7,381.72 : x
  2. Step 2: Convert to fraction form
    11,553.40/17,318.94 = 7,381.72/x
  3. Step 3: Cross multiply
    11,553.40x = 17,318.94 × 7,381.72
  4. Step 4: Simplify right side
    11,553.40x = 127,843,565.78
  5. Step 5: Solve for x
    x = 127,843,565.78/11,553.40
  6. Step 6: Final answer
    x = 11,065.45

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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.