Home / 19,121.28-26,376.12-13,464.24

Finding the Fourth Proportional to 19,121.28, 26,376.12 and 13,464.24

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Solution

The fourth proportional to 19,121.28, 26,376.12 and 13,464.24 is: 18,572.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,121.28 : 26,376.12 = 13,464.24 : x
  2. Step 2: Convert to fraction form
    19,121.28/26,376.12 = 13,464.24/x
  3. Step 3: Cross multiply
    19,121.28x = 26,376.12 × 13,464.24
  4. Step 4: Simplify right side
    19,121.28x = 355,134,409.95
  5. Step 5: Solve for x
    x = 355,134,409.95/19,121.28
  6. Step 6: Final answer
    x = 18,572.73

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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.