Home / 15,193.05-20,967.30-8,478.96

Finding the Fourth Proportional to 15,193.05, 20,967.30 and 8,478.96

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Solution

The fourth proportional to 15,193.05, 20,967.30 and 8,478.96 is: 11,701.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,193.05 : 20,967.30 = 8,478.96 : x
  2. Step 2: Convert to fraction form
    15,193.05/20,967.30 = 8,478.96/x
  3. Step 3: Cross multiply
    15,193.05x = 20,967.30 × 8,478.96
  4. Step 4: Simplify right side
    15,193.05x = 177,780,898.01
  5. Step 5: Solve for x
    x = 177,780,898.01/15,193.05
  6. Step 6: Final answer
    x = 11,701.46

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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.