Home / 19,370.12-26,728.56-10,871.09

Finding the Fourth Proportional to 19,370.12, 26,728.56 and 10,871.09

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Solution

The fourth proportional to 19,370.12, 26,728.56 and 10,871.09 is: 15,000.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,370.12 : 26,728.56 = 10,871.09 : x
  2. Step 2: Convert to fraction form
    19,370.12/26,728.56 = 10,871.09/x
  3. Step 3: Cross multiply
    19,370.12x = 26,728.56 × 10,871.09
  4. Step 4: Simplify right side
    19,370.12x = 290,568,581.33
  5. Step 5: Solve for x
    x = 290,568,581.33/19,370.12
  6. Step 6: Final answer
    x = 15,000.87

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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.