Home / 12,442.37-18,663.55-4,120.15

Finding the Fourth Proportional to 12,442.37, 18,663.55 and 4,120.15

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Solution

The fourth proportional to 12,442.37, 18,663.55 and 4,120.15 is: 6,180.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,442.37 : 18,663.55 = 4,120.15 : x
  2. Step 2: Convert to fraction form
    12,442.37/18,663.55 = 4,120.15/x
  3. Step 3: Cross multiply
    12,442.37x = 18,663.55 × 4,120.15
  4. Step 4: Simplify right side
    12,442.37x = 76,896,625.53
  5. Step 5: Solve for x
    x = 76,896,625.53/12,442.37
  6. Step 6: Final answer
    x = 6,180.22

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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.