Home / 10,909.29-15,054.39-6,667.46

Finding the Fourth Proportional to 10,909.29, 15,054.39 and 6,667.46

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Solution

The fourth proportional to 10,909.29, 15,054.39 and 6,667.46 is: 9,200.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,909.29 : 15,054.39 = 6,667.46 : x
  2. Step 2: Convert to fraction form
    10,909.29/15,054.39 = 6,667.46/x
  3. Step 3: Cross multiply
    10,909.29x = 15,054.39 × 6,667.46
  4. Step 4: Simplify right side
    10,909.29x = 100,374,467.88
  5. Step 5: Solve for x
    x = 100,374,467.88/10,909.29
  6. Step 6: Final answer
    x = 9,200.82

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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.