Home / 10,994.39-15,171.35-6,456.59

Finding the Fourth Proportional to 10,994.39, 15,171.35 and 6,456.59

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Solution

The fourth proportional to 10,994.39, 15,171.35 and 6,456.59 is: 8,909.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,994.39 : 15,171.35 = 6,456.59 : x
  2. Step 2: Convert to fraction form
    10,994.39/15,171.35 = 6,456.59/x
  3. Step 3: Cross multiply
    10,994.39x = 15,171.35 × 6,456.59
  4. Step 4: Simplify right side
    10,994.39x = 97,955,078.56
  5. Step 5: Solve for x
    x = 97,955,078.56/10,994.39
  6. Step 6: Final answer
    x = 8,909.56

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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.