Home / 12,318.66-18,478.62-5,999.35

Finding the Fourth Proportional to 12,318.66, 18,478.62 and 5,999.35

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Solution

The fourth proportional to 12,318.66, 18,478.62 and 5,999.35 is: 8,999.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,318.66 : 18,478.62 = 5,999.35 : x
  2. Step 2: Convert to fraction form
    12,318.66/18,478.62 = 5,999.35/x
  3. Step 3: Cross multiply
    12,318.66x = 18,478.62 × 5,999.35
  4. Step 4: Simplify right side
    12,318.66x = 110,859,708.90
  5. Step 5: Solve for x
    x = 110,859,708.90/12,318.66
  6. Step 6: Final answer
    x = 8,999.34

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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.