Home / 10,990.19-15,165.24-6,209.62

Finding the Fourth Proportional to 10,990.19, 15,165.24 and 6,209.62

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Solution

The fourth proportional to 10,990.19, 15,165.24 and 6,209.62 is: 8,568.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990.19 : 15,165.24 = 6,209.62 : x
  2. Step 2: Convert to fraction form
    10,990.19/15,165.24 = 6,209.62/x
  3. Step 3: Cross multiply
    10,990.19x = 15,165.24 × 6,209.62
  4. Step 4: Simplify right side
    10,990.19x = 94,170,339.70
  5. Step 5: Solve for x
    x = 94,170,339.70/10,990.19
  6. Step 6: Final answer
    x = 8,568.59

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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.