Home / 19,309.83-26,645.31-10,812.42

Finding the Fourth Proportional to 19,309.83, 26,645.31 and 10,812.42

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Solution

The fourth proportional to 19,309.83, 26,645.31 and 10,812.42 is: 14,919.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,309.83 : 26,645.31 = 10,812.42 : x
  2. Step 2: Convert to fraction form
    19,309.83/26,645.31 = 10,812.42/x
  3. Step 3: Cross multiply
    19,309.83x = 26,645.31 × 10,812.42
  4. Step 4: Simplify right side
    19,309.83x = 288,100,282.75
  5. Step 5: Solve for x
    x = 288,100,282.75/19,309.83
  6. Step 6: Final answer
    x = 14,919.88

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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.