Home / 18,143.93-25,041.38-11,074.46

Finding the Fourth Proportional to 18,143.93, 25,041.38 and 11,074.46

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Solution

The fourth proportional to 18,143.93, 25,041.38 and 11,074.46 is: 15,284.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,143.93 : 25,041.38 = 11,074.46 : x
  2. Step 2: Convert to fraction form
    18,143.93/25,041.38 = 11,074.46/x
  3. Step 3: Cross multiply
    18,143.93x = 25,041.38 × 11,074.46
  4. Step 4: Simplify right side
    18,143.93x = 277,319,705.78
  5. Step 5: Solve for x
    x = 277,319,705.78/18,143.93
  6. Step 6: Final answer
    x = 15,284.43

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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.