Home / 12,179.67-18,270.36-4,281.26

Finding the Fourth Proportional to 12,179.67, 18,270.36 and 4,281.26

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Solution

The fourth proportional to 12,179.67, 18,270.36 and 4,281.26 is: 6,422.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,179.67 : 18,270.36 = 4,281.26 : x
  2. Step 2: Convert to fraction form
    12,179.67/18,270.36 = 4,281.26/x
  3. Step 3: Cross multiply
    12,179.67x = 18,270.36 × 4,281.26
  4. Step 4: Simplify right side
    12,179.67x = 78,220,070.10
  5. Step 5: Solve for x
    x = 78,220,070.10/12,179.67
  6. Step 6: Final answer
    x = 6,422.19

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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.