Home / 11,310.66-15,615.81-7,284.51

Finding the Fourth Proportional to 11,310.66, 15,615.81 and 7,284.51

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Solution

The fourth proportional to 11,310.66, 15,615.81 and 7,284.51 is: 10,057.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,310.66 : 15,615.81 = 7,284.51 : x
  2. Step 2: Convert to fraction form
    11,310.66/15,615.81 = 7,284.51/x
  3. Step 3: Cross multiply
    11,310.66x = 15,615.81 × 7,284.51
  4. Step 4: Simplify right side
    11,310.66x = 113,753,524.10
  5. Step 5: Solve for x
    x = 113,753,524.10/11,310.66
  6. Step 6: Final answer
    x = 10,057.20

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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.