Home / 18,997.75-28,483.45-8,462.18

Finding the Fourth Proportional to 18,997.75, 28,483.45 and 8,462.18

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Solution

The fourth proportional to 18,997.75, 28,483.45 and 8,462.18 is: 12,687.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,997.75 : 28,483.45 = 8,462.18 : x
  2. Step 2: Convert to fraction form
    18,997.75/28,483.45 = 8,462.18/x
  3. Step 3: Cross multiply
    18,997.75x = 28,483.45 × 8,462.18
  4. Step 4: Simplify right side
    18,997.75x = 241,032,080.92
  5. Step 5: Solve for x
    x = 241,032,080.92/18,997.75
  6. Step 6: Final answer
    x = 12,687.40

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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.