Home / 12,445.56-18,640.36-5,857.84

Finding the Fourth Proportional to 12,445.56, 18,640.36 and 5,857.84

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Solution

The fourth proportional to 12,445.56, 18,640.36 and 5,857.84 is: 8,773.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,445.56 : 18,640.36 = 5,857.84 : x
  2. Step 2: Convert to fraction form
    12,445.56/18,640.36 = 5,857.84/x
  3. Step 3: Cross multiply
    12,445.56x = 18,640.36 × 5,857.84
  4. Step 4: Simplify right side
    12,445.56x = 109,192,246.42
  5. Step 5: Solve for x
    x = 109,192,246.42/12,445.56
  6. Step 6: Final answer
    x = 8,773.59

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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.