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Finding the Fourth Proportional to 11,339.40, 17,005.05 and 3,944.10

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Solution

The fourth proportional to 11,339.40, 17,005.05 and 3,944.10 is: 5,914.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,339.40 : 17,005.05 = 3,944.10 : x
  2. Step 2: Convert to fraction form
    11,339.40/17,005.05 = 3,944.10/x
  3. Step 3: Cross multiply
    11,339.40x = 17,005.05 × 3,944.10
  4. Step 4: Simplify right side
    11,339.40x = 67,069,617.71
  5. Step 5: Solve for x
    x = 67,069,617.71/11,339.40
  6. Step 6: Final answer
    x = 5,914.74

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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.