Home / 12,641.22-18,969.39-4,856.58

Finding the Fourth Proportional to 12,641.22, 18,969.39 and 4,856.58

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Solution

The fourth proportional to 12,641.22, 18,969.39 and 4,856.58 is: 7,287.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,641.22 : 18,969.39 = 4,856.58 : x
  2. Step 2: Convert to fraction form
    12,641.22/18,969.39 = 4,856.58/x
  3. Step 3: Cross multiply
    12,641.22x = 18,969.39 × 4,856.58
  4. Step 4: Simplify right side
    12,641.22x = 92,126,360.09
  5. Step 5: Solve for x
    x = 92,126,360.09/12,641.22
  6. Step 6: Final answer
    x = 7,287.77

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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.