Home / 11,387.02-15,716.62-7,401.22

Finding the Fourth Proportional to 11,387.02, 15,716.62 and 7,401.22

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Solution

The fourth proportional to 11,387.02, 15,716.62 and 7,401.22 is: 10,215.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,387.02 : 15,716.62 = 7,401.22 : x
  2. Step 2: Convert to fraction form
    11,387.02/15,716.62 = 7,401.22/x
  3. Step 3: Cross multiply
    11,387.02x = 15,716.62 × 7,401.22
  4. Step 4: Simplify right side
    11,387.02x = 116,322,162.28
  5. Step 5: Solve for x
    x = 116,322,162.28/11,387.02
  6. Step 6: Final answer
    x = 10,215.33

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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.