Home / 10,949.28-15,109.74-6,169.16

Finding the Fourth Proportional to 10,949.28, 15,109.74 and 6,169.16

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Solution

The fourth proportional to 10,949.28, 15,109.74 and 6,169.16 is: 8,513.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,949.28 : 15,109.74 = 6,169.16 : x
  2. Step 2: Convert to fraction form
    10,949.28/15,109.74 = 6,169.16/x
  3. Step 3: Cross multiply
    10,949.28x = 15,109.74 × 6,169.16
  4. Step 4: Simplify right side
    10,949.28x = 93,214,441.39
  5. Step 5: Solve for x
    x = 93,214,441.39/10,949.28
  6. Step 6: Final answer
    x = 8,513.30

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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.