Home / 18,216.42-25,138.65-10,258.48

Finding the Fourth Proportional to 18,216.42, 25,138.65 and 10,258.48

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Solution

The fourth proportional to 18,216.42, 25,138.65 and 10,258.48 is: 14,156.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,216.42 : 25,138.65 = 10,258.48 : x
  2. Step 2: Convert to fraction form
    18,216.42/25,138.65 = 10,258.48/x
  3. Step 3: Cross multiply
    18,216.42x = 25,138.65 × 10,258.48
  4. Step 4: Simplify right side
    18,216.42x = 257,884,338.25
  5. Step 5: Solve for x
    x = 257,884,338.25/18,216.42
  6. Step 6: Final answer
    x = 14,156.70

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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.