Home / 10,909.56-16,344.78-6,627.50

Finding the Fourth Proportional to 10,909.56, 16,344.78 and 6,627.50

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Solution

The fourth proportional to 10,909.56, 16,344.78 and 6,627.50 is: 9,929.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,909.56 : 16,344.78 = 6,627.50 : x
  2. Step 2: Convert to fraction form
    10,909.56/16,344.78 = 6,627.50/x
  3. Step 3: Cross multiply
    10,909.56x = 16,344.78 × 6,627.50
  4. Step 4: Simplify right side
    10,909.56x = 108,324,984.17
  5. Step 5: Solve for x
    x = 108,324,984.17/10,909.56
  6. Step 6: Final answer
    x = 9,929.36

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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.