Home / 15,464.89-21,340.26-8,748.98

Finding the Fourth Proportional to 15,464.89, 21,340.26 and 8,748.98

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Solution

The fourth proportional to 15,464.89, 21,340.26 and 8,748.98 is: 12,072.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,464.89 : 21,340.26 = 8,748.98 : x
  2. Step 2: Convert to fraction form
    15,464.89/21,340.26 = 8,748.98/x
  3. Step 3: Cross multiply
    15,464.89x = 21,340.26 × 8,748.98
  4. Step 4: Simplify right side
    15,464.89x = 186,705,481.26
  5. Step 5: Solve for x
    x = 186,705,481.26/15,464.89
  6. Step 6: Final answer
    x = 12,072.86

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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.