Home / 10,990.16-15,166.45-5,954.36

Finding the Fourth Proportional to 10,990.16, 15,166.45 and 5,954.36

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Solution

The fourth proportional to 10,990.16, 15,166.45 and 5,954.36 is: 8,217.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990.16 : 15,166.45 = 5,954.36 : x
  2. Step 2: Convert to fraction form
    10,990.16/15,166.45 = 5,954.36/x
  3. Step 3: Cross multiply
    10,990.16x = 15,166.45 × 5,954.36
  4. Step 4: Simplify right side
    10,990.16x = 90,306,434.83
  5. Step 5: Solve for x
    x = 90,306,434.83/10,990.16
  6. Step 6: Final answer
    x = 8,217.03

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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.