Home / 18,216.39-25,138.86-10,258.56

Finding the Fourth Proportional to 18,216.39, 25,138.86 and 10,258.56

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Solution

The fourth proportional to 18,216.39, 25,138.86 and 10,258.56 is: 14,156.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,216.39 : 25,138.86 = 10,258.56 : x
  2. Step 2: Convert to fraction form
    18,216.39/25,138.86 = 10,258.56/x
  3. Step 3: Cross multiply
    18,216.39x = 25,138.86 × 10,258.56
  4. Step 4: Simplify right side
    18,216.39x = 257,888,503.64
  5. Step 5: Solve for x
    x = 257,888,503.64/18,216.39
  6. Step 6: Final answer
    x = 14,156.95

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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.