Home / 18,138.49-25,027.95-10,181.05

Finding the Fourth Proportional to 18,138.49, 25,027.95 and 10,181.05

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Solution

The fourth proportional to 18,138.49, 25,027.95 and 10,181.05 is: 14,048.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,138.49 : 25,027.95 = 10,181.05 : x
  2. Step 2: Convert to fraction form
    18,138.49/25,027.95 = 10,181.05/x
  3. Step 3: Cross multiply
    18,138.49x = 25,027.95 × 10,181.05
  4. Step 4: Simplify right side
    18,138.49x = 254,810,810.35
  5. Step 5: Solve for x
    x = 254,810,810.35/18,138.49
  6. Step 6: Final answer
    x = 14,048.07

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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.