Home / 8,189.49-12,283.93-2,642.41

Finding the Fourth Proportional to 8,189.49, 12,283.93 and 2,642.41

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Solution

The fourth proportional to 8,189.49, 12,283.93 and 2,642.41 is: 3,963.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,189.49 : 12,283.93 = 2,642.41 : x
  2. Step 2: Convert to fraction form
    8,189.49/12,283.93 = 2,642.41/x
  3. Step 3: Cross multiply
    8,189.49x = 12,283.93 × 2,642.41
  4. Step 4: Simplify right side
    8,189.49x = 32,459,179.47
  5. Step 5: Solve for x
    x = 32,459,179.47/8,189.49
  6. Step 6: Final answer
    x = 3,963.52

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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.