Home / 8,739.04-13,108.43-2,165.18

Finding the Fourth Proportional to 8,739.04, 13,108.43 and 2,165.18

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Solution

The fourth proportional to 8,739.04, 13,108.43 and 2,165.18 is: 3,247.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,739.04 : 13,108.43 = 2,165.18 : x
  2. Step 2: Convert to fraction form
    8,739.04/13,108.43 = 2,165.18/x
  3. Step 3: Cross multiply
    8,739.04x = 13,108.43 × 2,165.18
  4. Step 4: Simplify right side
    8,739.04x = 28,382,124.07
  5. Step 5: Solve for x
    x = 28,382,124.07/8,739.04
  6. Step 6: Final answer
    x = 3,247.74

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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.