Home / 10,623.24-15,920.28-5,418.18

Finding the Fourth Proportional to 10,623.24, 15,920.28 and 5,418.18

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Solution

The fourth proportional to 10,623.24, 15,920.28 and 5,418.18 is: 8,119.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,623.24 : 15,920.28 = 5,418.18 : x
  2. Step 2: Convert to fraction form
    10,623.24/15,920.28 = 5,418.18/x
  3. Step 3: Cross multiply
    10,623.24x = 15,920.28 × 5,418.18
  4. Step 4: Simplify right side
    10,623.24x = 86,258,942.69
  5. Step 5: Solve for x
    x = 86,258,942.69/10,623.24
  6. Step 6: Final answer
    x = 8,119.83

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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.