Home / 17,115.90-23,619.65-9,561.75

Finding the Fourth Proportional to 17,115.90, 23,619.65 and 9,561.75

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Solution

The fourth proportional to 17,115.90, 23,619.65 and 9,561.75 is: 13,195.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,115.90 : 23,619.65 = 9,561.75 : x
  2. Step 2: Convert to fraction form
    17,115.90/23,619.65 = 9,561.75/x
  3. Step 3: Cross multiply
    17,115.90x = 23,619.65 × 9,561.75
  4. Step 4: Simplify right side
    17,115.90x = 225,845,140.58
  5. Step 5: Solve for x
    x = 225,845,140.58/17,115.90
  6. Step 6: Final answer
    x = 13,195.05

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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.