Home / 19,164.20-26,458.74-13,124.57

Finding the Fourth Proportional to 19,164.20, 26,458.74 and 13,124.57

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Solution

The fourth proportional to 19,164.20, 26,458.74 and 13,124.57 is: 18,120.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,164.20 : 26,458.74 = 13,124.57 : x
  2. Step 2: Convert to fraction form
    19,164.20/26,458.74 = 13,124.57/x
  3. Step 3: Cross multiply
    19,164.20x = 26,458.74 × 13,124.57
  4. Step 4: Simplify right side
    19,164.20x = 347,259,452.95
  5. Step 5: Solve for x
    x = 347,259,452.95/19,164.20
  6. Step 6: Final answer
    x = 18,120.22

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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.