Home / 11,261.31-15,541.25-9,674.39

Finding the Fourth Proportional to 11,261.31, 15,541.25 and 9,674.39

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Solution

The fourth proportional to 11,261.31, 15,541.25 and 9,674.39 is: 13,351.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,261.31 : 15,541.25 = 9,674.39 : x
  2. Step 2: Convert to fraction form
    11,261.31/15,541.25 = 9,674.39/x
  3. Step 3: Cross multiply
    11,261.31x = 15,541.25 × 9,674.39
  4. Step 4: Simplify right side
    11,261.31x = 150,351,987.51
  5. Step 5: Solve for x
    x = 150,351,987.51/11,261.31
  6. Step 6: Final answer
    x = 13,351.20

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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.