Home / 16,255.45-22,429.74-9,181.72

Finding the Fourth Proportional to 16,255.45, 22,429.74 and 9,181.72

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Solution

The fourth proportional to 16,255.45, 22,429.74 and 9,181.72 is: 12,669.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,255.45 : 22,429.74 = 9,181.72 : x
  2. Step 2: Convert to fraction form
    16,255.45/22,429.74 = 9,181.72/x
  3. Step 3: Cross multiply
    16,255.45x = 22,429.74 × 9,181.72
  4. Step 4: Simplify right side
    16,255.45x = 205,943,592.35
  5. Step 5: Solve for x
    x = 205,943,592.35/16,255.45
  6. Step 6: Final answer
    x = 12,669.20

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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.