Home / 12,480.18-18,709.32-4,694.46

Finding the Fourth Proportional to 12,480.18, 18,709.32 and 4,694.46

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Solution

The fourth proportional to 12,480.18, 18,709.32 and 4,694.46 is: 7,037.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,480.18 : 18,709.32 = 4,694.46 : x
  2. Step 2: Convert to fraction form
    12,480.18/18,709.32 = 4,694.46/x
  3. Step 3: Cross multiply
    12,480.18x = 18,709.32 × 4,694.46
  4. Step 4: Simplify right side
    12,480.18x = 87,830,101.81
  5. Step 5: Solve for x
    x = 87,830,101.81/12,480.18
  6. Step 6: Final answer
    x = 7,037.57

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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.