Home / 11,819.10-16,317.16-7,845.60

Finding the Fourth Proportional to 11,819.10, 16,317.16 and 7,845.60

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Solution

The fourth proportional to 11,819.10, 16,317.16 and 7,845.60 is: 10,831.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,819.10 : 16,317.16 = 7,845.60 : x
  2. Step 2: Convert to fraction form
    11,819.10/16,317.16 = 7,845.60/x
  3. Step 3: Cross multiply
    11,819.10x = 16,317.16 × 7,845.60
  4. Step 4: Simplify right side
    11,819.10x = 128,017,910.50
  5. Step 5: Solve for x
    x = 128,017,910.50/11,819.10
  6. Step 6: Final answer
    x = 10,831.44

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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.