Home / 11,747.20-16,210.56-6,441.92

Finding the Fourth Proportional to 11,747.20, 16,210.56 and 6,441.92

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Solution

The fourth proportional to 11,747.20, 16,210.56 and 6,441.92 is: 8,889.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,747.20 : 16,210.56 = 6,441.92 : x
  2. Step 2: Convert to fraction form
    11,747.20/16,210.56 = 6,441.92/x
  3. Step 3: Cross multiply
    11,747.20x = 16,210.56 × 6,441.92
  4. Step 4: Simplify right side
    11,747.20x = 104,427,130.68
  5. Step 5: Solve for x
    x = 104,427,130.68/11,747.20
  6. Step 6: Final answer
    x = 8,889.53

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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.