Home / 18,135.54-25,027.50-10,178.40

Finding the Fourth Proportional to 18,135.54, 25,027.50 and 10,178.40

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Solution

The fourth proportional to 18,135.54, 25,027.50 and 10,178.40 is: 14,046.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,135.54 : 25,027.50 = 10,178.40 : x
  2. Step 2: Convert to fraction form
    18,135.54/25,027.50 = 10,178.40/x
  3. Step 3: Cross multiply
    18,135.54x = 25,027.50 × 10,178.40
  4. Step 4: Simplify right side
    18,135.54x = 254,739,906
  5. Step 5: Solve for x
    x = 254,739,906/18,135.54
  6. Step 6: Final answer
    x = 14,046.45

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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.