Home / 10,218.24-15,328.62-3,645.12

Finding the Fourth Proportional to 10,218.24, 15,328.62 and 3,645.12

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Solution

The fourth proportional to 10,218.24, 15,328.62 and 3,645.12 is: 5,468.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,218.24 : 15,328.62 = 3,645.12 : x
  2. Step 2: Convert to fraction form
    10,218.24/15,328.62 = 3,645.12/x
  3. Step 3: Cross multiply
    10,218.24x = 15,328.62 × 3,645.12
  4. Step 4: Simplify right side
    10,218.24x = 55,874,659.33
  5. Step 5: Solve for x
    x = 55,874,659.33/10,218.24
  6. Step 6: Final answer
    x = 5,468.13

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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.