Home / 10,195.28-15,275.21-5,518.51

Finding the Fourth Proportional to 10,195.28, 15,275.21 and 5,518.51

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Solution

The fourth proportional to 10,195.28, 15,275.21 and 5,518.51 is: 8,268.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,195.28 : 15,275.21 = 5,518.51 : x
  2. Step 2: Convert to fraction form
    10,195.28/15,275.21 = 5,518.51/x
  3. Step 3: Cross multiply
    10,195.28x = 15,275.21 × 5,518.51
  4. Step 4: Simplify right side
    10,195.28x = 84,296,399.14
  5. Step 5: Solve for x
    x = 84,296,399.14/10,195.28
  6. Step 6: Final answer
    x = 8,268.18

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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.