Home / 10,990.00-15,166.20-5,954.25

Finding the Fourth Proportional to 10,990.00, 15,166.20 and 5,954.25

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Solution

The fourth proportional to 10,990.00, 15,166.20 and 5,954.25 is: 8,216.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990.00 : 15,166.20 = 5,954.25 : x
  2. Step 2: Convert to fraction form
    10,990.00/15,166.20 = 5,954.25/x
  3. Step 3: Cross multiply
    10,990.00x = 15,166.20 × 5,954.25
  4. Step 4: Simplify right side
    10,990.00x = 90,303,346.35
  5. Step 5: Solve for x
    x = 90,303,346.35/10,990.00
  6. Step 6: Final answer
    x = 8,216.87

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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.