Home / 10,909.17-15,054.26-6,667.31

Finding the Fourth Proportional to 10,909.17, 15,054.26 and 6,667.31

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Solution

The fourth proportional to 10,909.17, 15,054.26 and 6,667.31 is: 9,200.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,909.17 : 15,054.26 = 6,667.31 : x
  2. Step 2: Convert to fraction form
    10,909.17/15,054.26 = 6,667.31/x
  3. Step 3: Cross multiply
    10,909.17x = 15,054.26 × 6,667.31
  4. Step 4: Simplify right side
    10,909.17x = 100,371,422.54
  5. Step 5: Solve for x
    x = 100,371,422.54/10,909.17
  6. Step 6: Final answer
    x = 9,200.65

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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.