Home / 12,318.96-18,481.12-4,528.32

Finding the Fourth Proportional to 12,318.96, 18,481.12 and 4,528.32

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Solution

The fourth proportional to 12,318.96, 18,481.12 and 4,528.32 is: 6,793.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,318.96 : 18,481.12 = 4,528.32 : x
  2. Step 2: Convert to fraction form
    12,318.96/18,481.12 = 4,528.32/x
  3. Step 3: Cross multiply
    12,318.96x = 18,481.12 × 4,528.32
  4. Step 4: Simplify right side
    12,318.96x = 83,688,425.32
  5. Step 5: Solve for x
    x = 83,688,425.32/12,318.96
  6. Step 6: Final answer
    x = 6,793.47

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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.