Home / 12,372.20-18,542.10-4,970.60

Finding the Fourth Proportional to 12,372.20, 18,542.10 and 4,970.60

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Solution

The fourth proportional to 12,372.20, 18,542.10 and 4,970.60 is: 7,449.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,372.20 : 18,542.10 = 4,970.60 : x
  2. Step 2: Convert to fraction form
    12,372.20/18,542.10 = 4,970.60/x
  3. Step 3: Cross multiply
    12,372.20x = 18,542.10 × 4,970.60
  4. Step 4: Simplify right side
    12,372.20x = 92,165,362.26
  5. Step 5: Solve for x
    x = 92,165,362.26/12,372.20
  6. Step 6: Final answer
    x = 7,449.39

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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.