Home / 11,216.43-15,476.40-7,022.25

Finding the Fourth Proportional to 11,216.43, 15,476.40 and 7,022.25

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Solution

The fourth proportional to 11,216.43, 15,476.40 and 7,022.25 is: 9,689.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,216.43 : 15,476.40 = 7,022.25 : x
  2. Step 2: Convert to fraction form
    11,216.43/15,476.40 = 7,022.25/x
  3. Step 3: Cross multiply
    11,216.43x = 15,476.40 × 7,022.25
  4. Step 4: Simplify right side
    11,216.43x = 108,679,149.90
  5. Step 5: Solve for x
    x = 108,679,149.90/11,216.43
  6. Step 6: Final answer
    x = 9,689.28

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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.