Home / 19,151.46-26,420.37-11,190.11

Finding the Fourth Proportional to 19,151.46, 26,420.37 and 11,190.11

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Solution

The fourth proportional to 19,151.46, 26,420.37 and 11,190.11 is: 15,437.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,151.46 : 26,420.37 = 11,190.11 : x
  2. Step 2: Convert to fraction form
    19,151.46/26,420.37 = 11,190.11/x
  3. Step 3: Cross multiply
    19,151.46x = 26,420.37 × 11,190.11
  4. Step 4: Simplify right side
    19,151.46x = 295,646,846.54
  5. Step 5: Solve for x
    x = 295,646,846.54/19,151.46
  6. Step 6: Final answer
    x = 15,437.30

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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.