Home / 15,925.87-21,979.92-11,464.39

Finding the Fourth Proportional to 15,925.87, 21,979.92 and 11,464.39

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Solution

The fourth proportional to 15,925.87, 21,979.92 and 11,464.39 is: 15,822.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,925.87 : 21,979.92 = 11,464.39 : x
  2. Step 2: Convert to fraction form
    15,925.87/21,979.92 = 11,464.39/x
  3. Step 3: Cross multiply
    15,925.87x = 21,979.92 × 11,464.39
  4. Step 4: Simplify right side
    15,925.87x = 251,986,375.05
  5. Step 5: Solve for x
    x = 251,986,375.05/15,925.87
  6. Step 6: Final answer
    x = 15,822.46

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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.