Home / 15,282.05-21,090.24-8,568.12

Finding the Fourth Proportional to 15,282.05, 21,090.24 and 8,568.12

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Solution

The fourth proportional to 15,282.05, 21,090.24 and 8,568.12 is: 11,824.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,282.05 : 21,090.24 = 8,568.12 : x
  2. Step 2: Convert to fraction form
    15,282.05/21,090.24 = 8,568.12/x
  3. Step 3: Cross multiply
    15,282.05x = 21,090.24 × 8,568.12
  4. Step 4: Simplify right side
    15,282.05x = 180,703,707.15
  5. Step 5: Solve for x
    x = 180,703,707.15/15,282.05
  6. Step 6: Final answer
    x = 11,824.57

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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.