Home / 15,282.77-21,090.03-8,568.39

Finding the Fourth Proportional to 15,282.77, 21,090.03 and 8,568.39

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Solution

The fourth proportional to 15,282.77, 21,090.03 and 8,568.39 is: 11,824.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,282.77 : 21,090.03 = 8,568.39 : x
  2. Step 2: Convert to fraction form
    15,282.77/21,090.03 = 8,568.39/x
  3. Step 3: Cross multiply
    15,282.77x = 21,090.03 × 8,568.39
  4. Step 4: Simplify right side
    15,282.77x = 180,707,602.15
  5. Step 5: Solve for x
    x = 180,707,602.15/15,282.77
  6. Step 6: Final answer
    x = 11,824.27

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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.