Home / 8,158.40-12,237.44-2,612.32

Finding the Fourth Proportional to 8,158.40, 12,237.44 and 2,612.32

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Solution

The fourth proportional to 8,158.40, 12,237.44 and 2,612.32 is: 3,918.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,158.40 : 12,237.44 = 2,612.32 : x
  2. Step 2: Convert to fraction form
    8,158.40/12,237.44 = 2,612.32/x
  3. Step 3: Cross multiply
    8,158.40x = 12,237.44 × 2,612.32
  4. Step 4: Simplify right side
    8,158.40x = 31,968,109.26
  5. Step 5: Solve for x
    x = 31,968,109.26/8,158.40
  6. Step 6: Final answer
    x = 3,918.43

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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.