Home / 15,908.91-21,958.19-9,193.55

Finding the Fourth Proportional to 15,908.91, 21,958.19 and 9,193.55

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Solution

The fourth proportional to 15,908.91, 21,958.19 and 9,193.55 is: 12,689.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,908.91 : 21,958.19 = 9,193.55 : x
  2. Step 2: Convert to fraction form
    15,908.91/21,958.19 = 9,193.55/x
  3. Step 3: Cross multiply
    15,908.91x = 21,958.19 × 9,193.55
  4. Step 4: Simplify right side
    15,908.91x = 201,873,719.91
  5. Step 5: Solve for x
    x = 201,873,719.91/15,908.91
  6. Step 6: Final answer
    x = 12,689.35

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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.