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Finding the Fourth Proportional to 7,553.81, 11,326.81 and 3,390.24

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Solution

The fourth proportional to 7,553.81, 11,326.81 and 3,390.24 is: 5,083.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,553.81 : 11,326.81 = 3,390.24 : x
  2. Step 2: Convert to fraction form
    7,553.81/11,326.81 = 3,390.24/x
  3. Step 3: Cross multiply
    7,553.81x = 11,326.81 × 3,390.24
  4. Step 4: Simplify right side
    7,553.81x = 38,400,657.40
  5. Step 5: Solve for x
    x = 38,400,657.40/7,553.81
  6. Step 6: Final answer
    x = 5,083.62

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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.