Home / 12,149.87-18,196.44-9,354.35

Finding the Fourth Proportional to 12,149.87, 18,196.44 and 9,354.35

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Solution

The fourth proportional to 12,149.87, 18,196.44 and 9,354.35 is: 14,009.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,149.87 : 18,196.44 = 9,354.35 : x
  2. Step 2: Convert to fraction form
    12,149.87/18,196.44 = 9,354.35/x
  3. Step 3: Cross multiply
    12,149.87x = 18,196.44 × 9,354.35
  4. Step 4: Simplify right side
    12,149.87x = 170,215,777.53
  5. Step 5: Solve for x
    x = 170,215,777.53/12,149.87
  6. Step 6: Final answer
    x = 14,009.68

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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.