Home / 11,109.64-15,342.78-9,610.36

Finding the Fourth Proportional to 11,109.64, 15,342.78 and 9,610.36

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Solution

The fourth proportional to 11,109.64, 15,342.78 and 9,610.36 is: 13,272.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,109.64 : 15,342.78 = 9,610.36 : x
  2. Step 2: Convert to fraction form
    11,109.64/15,342.78 = 9,610.36/x
  3. Step 3: Cross multiply
    11,109.64x = 15,342.78 × 9,610.36
  4. Step 4: Simplify right side
    11,109.64x = 147,449,639.20
  5. Step 5: Solve for x
    x = 147,449,639.20/11,109.64
  6. Step 6: Final answer
    x = 13,272.22

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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.