Home / 8,685.30-13,027.96-2,111.44

Finding the Fourth Proportional to 8,685.30, 13,027.96 and 2,111.44

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Solution

The fourth proportional to 8,685.30, 13,027.96 and 2,111.44 is: 3,167.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,685.30 : 13,027.96 = 2,111.44 : x
  2. Step 2: Convert to fraction form
    8,685.30/13,027.96 = 2,111.44/x
  3. Step 3: Cross multiply
    8,685.30x = 13,027.96 × 2,111.44
  4. Step 4: Simplify right side
    8,685.30x = 27,507,755.86
  5. Step 5: Solve for x
    x = 27,507,755.86/8,685.30
  6. Step 6: Final answer
    x = 3,167.16

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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.