Home / 19,399.74-26,769.87-10,899.90

Finding the Fourth Proportional to 19,399.74, 26,769.87 and 10,899.90

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Solution

The fourth proportional to 19,399.74, 26,769.87 and 10,899.90 is: 15,040.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,399.74 : 26,769.87 = 10,899.90 : x
  2. Step 2: Convert to fraction form
    19,399.74/26,769.87 = 10,899.90/x
  3. Step 3: Cross multiply
    19,399.74x = 26,769.87 × 10,899.90
  4. Step 4: Simplify right side
    19,399.74x = 291,788,906.01
  5. Step 5: Solve for x
    x = 291,788,906.01/19,399.74
  6. Step 6: Final answer
    x = 15,040.87

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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.