Home / 10,099.80-15,117.30-7,183.80

Finding the Fourth Proportional to 10,099.80, 15,117.30 and 7,183.80

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Solution

The fourth proportional to 10,099.80, 15,117.30 and 7,183.80 is: 10,752.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,099.80 : 15,117.30 = 7,183.80 : x
  2. Step 2: Convert to fraction form
    10,099.80/15,117.30 = 7,183.80/x
  3. Step 3: Cross multiply
    10,099.80x = 15,117.30 × 7,183.80
  4. Step 4: Simplify right side
    10,099.80x = 108,599,659.74
  5. Step 5: Solve for x
    x = 108,599,659.74/10,099.80
  6. Step 6: Final answer
    x = 10,752.65

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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.