Home / 18,215.97-25,138.13-10,258.34

Finding the Fourth Proportional to 18,215.97, 25,138.13 and 10,258.34

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Solution

The fourth proportional to 18,215.97, 25,138.13 and 10,258.34 is: 14,156.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,215.97 : 25,138.13 = 10,258.34 : x
  2. Step 2: Convert to fraction form
    18,215.97/25,138.13 = 10,258.34/x
  3. Step 3: Cross multiply
    18,215.97x = 25,138.13 × 10,258.34
  4. Step 4: Simplify right side
    18,215.97x = 257,875,307.52
  5. Step 5: Solve for x
    x = 257,875,307.52/18,215.97
  6. Step 6: Final answer
    x = 14,156.55

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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.