Home / 12,648.08-18,955.71-8,481.84

Finding the Fourth Proportional to 12,648.08, 18,955.71 and 8,481.84

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Solution

The fourth proportional to 12,648.08, 18,955.71 and 8,481.84 is: 12,711.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,648.08 : 18,955.71 = 8,481.84 : x
  2. Step 2: Convert to fraction form
    12,648.08/18,955.71 = 8,481.84/x
  3. Step 3: Cross multiply
    12,648.08x = 18,955.71 × 8,481.84
  4. Step 4: Simplify right side
    12,648.08x = 160,779,299.31
  5. Step 5: Solve for x
    x = 160,779,299.31/12,648.08
  6. Step 6: Final answer
    x = 12,711.76

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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.