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Finding the Fourth Proportional to 11,838.71, 17,759.99 and 4,443.75

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Solution

The fourth proportional to 11,838.71, 17,759.99 and 4,443.75 is: 6,666.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,838.71 : 17,759.99 = 4,443.75 : x
  2. Step 2: Convert to fraction form
    11,838.71/17,759.99 = 4,443.75/x
  3. Step 3: Cross multiply
    11,838.71x = 17,759.99 × 4,443.75
  4. Step 4: Simplify right side
    11,838.71x = 78,920,955.56
  5. Step 5: Solve for x
    x = 78,920,955.56/11,838.71
  6. Step 6: Final answer
    x = 6,666.35

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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.