Home / 18,219.74-25,143.62-10,261.76

Finding the Fourth Proportional to 18,219.74, 25,143.62 and 10,261.76

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Solution

The fourth proportional to 18,219.74, 25,143.62 and 10,261.76 is: 14,161.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,219.74 : 25,143.62 = 10,261.76 : x
  2. Step 2: Convert to fraction form
    18,219.74/25,143.62 = 10,261.76/x
  3. Step 3: Cross multiply
    18,219.74x = 25,143.62 × 10,261.76
  4. Step 4: Simplify right side
    18,219.74x = 258,017,616.94
  5. Step 5: Solve for x
    x = 258,017,616.94/18,219.74
  6. Step 6: Final answer
    x = 14,161.44

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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.