Home / 15,844.69-21,867.96-9,129.03

Finding the Fourth Proportional to 15,844.69, 21,867.96 and 9,129.03

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Solution

The fourth proportional to 15,844.69, 21,867.96 and 9,129.03 is: 12,599.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,844.69 : 21,867.96 = 9,129.03 : x
  2. Step 2: Convert to fraction form
    15,844.69/21,867.96 = 9,129.03/x
  3. Step 3: Cross multiply
    15,844.69x = 21,867.96 × 9,129.03
  4. Step 4: Simplify right side
    15,844.69x = 199,633,262.88
  5. Step 5: Solve for x
    x = 199,633,262.88/15,844.69
  6. Step 6: Final answer
    x = 12,599.38

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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.