Home / 10,911.20-15,057.54-6,195.57

Finding the Fourth Proportional to 10,911.20, 15,057.54 and 6,195.57

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Solution

The fourth proportional to 10,911.20, 15,057.54 and 6,195.57 is: 8,549.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,911.20 : 15,057.54 = 6,195.57 : x
  2. Step 2: Convert to fraction form
    10,911.20/15,057.54 = 6,195.57/x
  3. Step 3: Cross multiply
    10,911.20x = 15,057.54 × 6,195.57
  4. Step 4: Simplify right side
    10,911.20x = 93,290,043.10
  5. Step 5: Solve for x
    x = 93,290,043.10/10,911.20
  6. Step 6: Final answer
    x = 8,549.94

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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.