Home / 13,339.73-18,403.20-9,363.44

Finding the Fourth Proportional to 13,339.73, 18,403.20 and 9,363.44

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Solution

The fourth proportional to 13,339.73, 18,403.20 and 9,363.44 is: 12,917.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,339.73 : 18,403.20 = 9,363.44 : x
  2. Step 2: Convert to fraction form
    13,339.73/18,403.20 = 9,363.44/x
  3. Step 3: Cross multiply
    13,339.73x = 18,403.20 × 9,363.44
  4. Step 4: Simplify right side
    13,339.73x = 172,317,305.02
  5. Step 5: Solve for x
    x = 172,317,305.02/13,339.73
  6. Step 6: Final answer
    x = 12,917.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.