Home / 18,144.86-25,038.20-10,185.53

Finding the Fourth Proportional to 18,144.86, 25,038.20 and 10,185.53

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Solution

The fourth proportional to 18,144.86, 25,038.20 and 10,185.53 is: 14,055.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,144.86 : 25,038.20 = 10,185.53 : x
  2. Step 2: Convert to fraction form
    18,144.86/25,038.20 = 10,185.53/x
  3. Step 3: Cross multiply
    18,144.86x = 25,038.20 × 10,185.53
  4. Step 4: Simplify right side
    18,144.86x = 255,027,286.32
  5. Step 5: Solve for x
    x = 255,027,286.32/18,144.86
  6. Step 6: Final answer
    x = 14,055.07

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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.