Home / 14,747.90-20,353.88-8,376.48

Finding the Fourth Proportional to 14,747.90, 20,353.88 and 8,376.48

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Solution

The fourth proportional to 14,747.90, 20,353.88 and 8,376.48 is: 11,560.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,747.90 : 20,353.88 = 8,376.48 : x
  2. Step 2: Convert to fraction form
    14,747.90/20,353.88 = 8,376.48/x
  3. Step 3: Cross multiply
    14,747.90x = 20,353.88 × 8,376.48
  4. Step 4: Simplify right side
    14,747.90x = 170,493,889.68
  5. Step 5: Solve for x
    x = 170,493,889.68/14,747.90
  6. Step 6: Final answer
    x = 11,560.56

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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.