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Finding the Fourth Proportional to 11,339.88, 15,660.99 and 10,103.01

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Solution

The fourth proportional to 11,339.88, 15,660.99 and 10,103.01 is: 13,952.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,339.88 : 15,660.99 = 10,103.01 : x
  2. Step 2: Convert to fraction form
    11,339.88/15,660.99 = 10,103.01/x
  3. Step 3: Cross multiply
    11,339.88x = 15,660.99 × 10,103.01
  4. Step 4: Simplify right side
    11,339.88x = 158,223,138.58
  5. Step 5: Solve for x
    x = 158,223,138.58/11,339.88
  6. Step 6: Final answer
    x = 13,952.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.