Home / 15,854.42-21,859.20-10,179.14

Finding the Fourth Proportional to 15,854.42, 21,859.20 and 10,179.14

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Solution

The fourth proportional to 15,854.42, 21,859.20 and 10,179.14 is: 14,034.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,854.42 : 21,859.20 = 10,179.14 : x
  2. Step 2: Convert to fraction form
    15,854.42/21,859.20 = 10,179.14/x
  3. Step 3: Cross multiply
    15,854.42x = 21,859.20 × 10,179.14
  4. Step 4: Simplify right side
    15,854.42x = 222,507,857.09
  5. Step 5: Solve for x
    x = 222,507,857.09/15,854.42
  6. Step 6: Final answer
    x = 14,034.44

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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.