Home / 18,670.67-25,765.20-10,172.86

Finding the Fourth Proportional to 18,670.67, 25,765.20 and 10,172.86

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Solution

The fourth proportional to 18,670.67, 25,765.20 and 10,172.86 is: 14,038.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,670.67 : 25,765.20 = 10,172.86 : x
  2. Step 2: Convert to fraction form
    18,670.67/25,765.20 = 10,172.86/x
  3. Step 3: Cross multiply
    18,670.67x = 25,765.20 × 10,172.86
  4. Step 4: Simplify right side
    18,670.67x = 262,105,768.93
  5. Step 5: Solve for x
    x = 262,105,768.93/18,670.67
  6. Step 6: Final answer
    x = 14,038.37

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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.