Home / 19,419.72-26,799.58-10,921.62

Finding the Fourth Proportional to 19,419.72, 26,799.58 and 10,921.62

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Solution

The fourth proportional to 19,419.72, 26,799.58 and 10,921.62 is: 15,072.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,419.72 : 26,799.58 = 10,921.62 : x
  2. Step 2: Convert to fraction form
    19,419.72/26,799.58 = 10,921.62/x
  3. Step 3: Cross multiply
    19,419.72x = 26,799.58 × 10,921.62
  4. Step 4: Simplify right side
    19,419.72x = 292,694,828.92
  5. Step 5: Solve for x
    x = 292,694,828.92/19,419.72
  6. Step 6: Final answer
    x = 15,072.04

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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.