Home / 19,168.05-26,449.01-10,990.49

Finding the Fourth Proportional to 19,168.05, 26,449.01 and 10,990.49

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Solution

The fourth proportional to 19,168.05, 26,449.01 and 10,990.49 is: 15,165.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,168.05 : 26,449.01 = 10,990.49 : x
  2. Step 2: Convert to fraction form
    19,168.05/26,449.01 = 10,990.49/x
  3. Step 3: Cross multiply
    19,168.05x = 26,449.01 × 10,990.49
  4. Step 4: Simplify right side
    19,168.05x = 290,687,392.72
  5. Step 5: Solve for x
    x = 290,687,392.72/19,168.05
  6. Step 6: Final answer
    x = 15,165.20

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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.