Home / 15,849.11-21,875.19-10,188.43

Finding the Fourth Proportional to 15,849.11, 21,875.19 and 10,188.43

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Solution

The fourth proportional to 15,849.11, 21,875.19 and 10,188.43 is: 14,062.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,849.11 : 21,875.19 = 10,188.43 : x
  2. Step 2: Convert to fraction form
    15,849.11/21,875.19 = 10,188.43/x
  3. Step 3: Cross multiply
    15,849.11x = 21,875.19 × 10,188.43
  4. Step 4: Simplify right side
    15,849.11x = 222,873,787.36
  5. Step 5: Solve for x
    x = 222,873,787.36/15,849.11
  6. Step 6: Final answer
    x = 14,062.23

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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.