Home / 18,768.41-25,900.20-10,270.70

Finding the Fourth Proportional to 18,768.41, 25,900.20 and 10,270.70

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Solution

The fourth proportional to 18,768.41, 25,900.20 and 10,270.70 is: 14,173.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,768.41 : 25,900.20 = 10,270.70 : x
  2. Step 2: Convert to fraction form
    18,768.41/25,900.20 = 10,270.70/x
  3. Step 3: Cross multiply
    18,768.41x = 25,900.20 × 10,270.70
  4. Step 4: Simplify right side
    18,768.41x = 266,013,184.14
  5. Step 5: Solve for x
    x = 266,013,184.14/18,768.41
  6. Step 6: Final answer
    x = 14,173.45

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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.