Home / 12,060.99-18,092.85-10,820.78

Finding the Fourth Proportional to 12,060.99, 18,092.85 and 10,820.78

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Solution

The fourth proportional to 12,060.99, 18,092.85 and 10,820.78 is: 16,232.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,060.99 : 18,092.85 = 10,820.78 : x
  2. Step 2: Convert to fraction form
    12,060.99/18,092.85 = 10,820.78/x
  3. Step 3: Cross multiply
    12,060.99x = 18,092.85 × 10,820.78
  4. Step 4: Simplify right side
    12,060.99x = 195,778,749.42
  5. Step 5: Solve for x
    x = 195,778,749.42/12,060.99
  6. Step 6: Final answer
    x = 16,232.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.