Home / 19,781.55-29,672.46-8,094.77

Finding the Fourth Proportional to 19,781.55, 29,672.46 and 8,094.77

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Solution

The fourth proportional to 19,781.55, 29,672.46 and 8,094.77 is: 12,142.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,781.55 : 29,672.46 = 8,094.77 : x
  2. Step 2: Convert to fraction form
    19,781.55/29,672.46 = 8,094.77/x
  3. Step 3: Cross multiply
    19,781.55x = 29,672.46 × 8,094.77
  4. Step 4: Simplify right side
    19,781.55x = 240,191,739.03
  5. Step 5: Solve for x
    x = 240,191,739.03/19,781.55
  6. Step 6: Final answer
    x = 12,142.21

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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.