Home / 12,445.34-18,670.97-3,560.80

Finding the Fourth Proportional to 12,445.34, 18,670.97 and 3,560.80

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Solution

The fourth proportional to 12,445.34, 18,670.97 and 3,560.80 is: 5,342.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,445.34 : 18,670.97 = 3,560.80 : x
  2. Step 2: Convert to fraction form
    12,445.34/18,670.97 = 3,560.80/x
  3. Step 3: Cross multiply
    12,445.34x = 18,670.97 × 3,560.80
  4. Step 4: Simplify right side
    12,445.34x = 66,483,589.98
  5. Step 5: Solve for x
    x = 66,483,589.98/12,445.34
  6. Step 6: Final answer
    x = 5,342.05

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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.