Home / 18,219.30-25,143.12-10,261.05

Finding the Fourth Proportional to 18,219.30, 25,143.12 and 10,261.05

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Solution

The fourth proportional to 18,219.30, 25,143.12 and 10,261.05 is: 14,160.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,219.30 : 25,143.12 = 10,261.05 : x
  2. Step 2: Convert to fraction form
    18,219.30/25,143.12 = 10,261.05/x
  3. Step 3: Cross multiply
    18,219.30x = 25,143.12 × 10,261.05
  4. Step 4: Simplify right side
    18,219.30x = 257,994,811.48
  5. Step 5: Solve for x
    x = 257,994,811.48/18,219.30
  6. Step 6: Final answer
    x = 14,160.52

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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.