Home / 12,406.56-18,612.36-11,167.32

Finding the Fourth Proportional to 12,406.56, 18,612.36 and 11,167.32

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Solution

The fourth proportional to 12,406.56, 18,612.36 and 11,167.32 is: 16,753.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,406.56 : 18,612.36 = 11,167.32 : x
  2. Step 2: Convert to fraction form
    12,406.56/18,612.36 = 11,167.32/x
  3. Step 3: Cross multiply
    12,406.56x = 18,612.36 × 11,167.32
  4. Step 4: Simplify right side
    12,406.56x = 207,850,180.08
  5. Step 5: Solve for x
    x = 207,850,180.08/12,406.56
  6. Step 6: Final answer
    x = 16,753.25

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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.