Home / 12,440.02-18,656.20-4,118.32

Finding the Fourth Proportional to 12,440.02, 18,656.20 and 4,118.32

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Solution

The fourth proportional to 12,440.02, 18,656.20 and 4,118.32 is: 6,176.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,440.02 : 18,656.20 = 4,118.32 : x
  2. Step 2: Convert to fraction form
    12,440.02/18,656.20 = 4,118.32/x
  3. Step 3: Cross multiply
    12,440.02x = 18,656.20 × 4,118.32
  4. Step 4: Simplify right side
    12,440.02x = 76,832,201.58
  5. Step 5: Solve for x
    x = 76,832,201.58/12,440.02
  6. Step 6: Final answer
    x = 6,176.21

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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.