Home / 12,318.16-18,477.87-5,998.85

Finding the Fourth Proportional to 12,318.16, 18,477.87 and 5,998.85

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Solution

The fourth proportional to 12,318.16, 18,477.87 and 5,998.85 is: 8,998.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,318.16 : 18,477.87 = 5,998.85 : x
  2. Step 2: Convert to fraction form
    12,318.16/18,477.87 = 5,998.85/x
  3. Step 3: Cross multiply
    12,318.16x = 18,477.87 × 5,998.85
  4. Step 4: Simplify right side
    12,318.16x = 110,845,970.45
  5. Step 5: Solve for x
    x = 110,845,970.45/12,318.16
  6. Step 6: Final answer
    x = 8,998.59

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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.