Home / 18,245.53-25,178.06-10,288.49

Finding the Fourth Proportional to 18,245.53, 25,178.06 and 10,288.49

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Solution

The fourth proportional to 18,245.53, 25,178.06 and 10,288.49 is: 14,197.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,245.53 : 25,178.06 = 10,288.49 : x
  2. Step 2: Convert to fraction form
    18,245.53/25,178.06 = 10,288.49/x
  3. Step 3: Cross multiply
    18,245.53x = 25,178.06 × 10,288.49
  4. Step 4: Simplify right side
    18,245.53x = 259,044,307.20
  5. Step 5: Solve for x
    x = 259,044,307.20/18,245.53
  6. Step 6: Final answer
    x = 14,197.69

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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.