Home / 12,518.48-18,745.32-9,913.52

Finding the Fourth Proportional to 12,518.48, 18,745.32 and 9,913.52

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Solution

The fourth proportional to 12,518.48, 18,745.32 and 9,913.52 is: 14,844.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,518.48 : 18,745.32 = 9,913.52 : x
  2. Step 2: Convert to fraction form
    12,518.48/18,745.32 = 9,913.52/x
  3. Step 3: Cross multiply
    12,518.48x = 18,745.32 × 9,913.52
  4. Step 4: Simplify right side
    12,518.48x = 185,832,104.73
  5. Step 5: Solve for x
    x = 185,832,104.73/12,518.48
  6. Step 6: Final answer
    x = 14,844.62

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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.