Home / 18,215.72-25,138.16-10,258.24

Finding the Fourth Proportional to 18,215.72, 25,138.16 and 10,258.24

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Solution

The fourth proportional to 18,215.72, 25,138.16 and 10,258.24 is: 14,156.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,215.72 : 25,138.16 = 10,258.24 : x
  2. Step 2: Convert to fraction form
    18,215.72/25,138.16 = 10,258.24/x
  3. Step 3: Cross multiply
    18,215.72x = 25,138.16 × 10,258.24
  4. Step 4: Simplify right side
    18,215.72x = 257,873,278.44
  5. Step 5: Solve for x
    x = 257,873,278.44/18,215.72
  6. Step 6: Final answer
    x = 14,156.63

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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.