Home / 14,650.74-20,219.26-8,278.50

Finding the Fourth Proportional to 14,650.74, 20,219.26 and 8,278.50

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Solution

The fourth proportional to 14,650.74, 20,219.26 and 8,278.50 is: 11,425.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,650.74 : 20,219.26 = 8,278.50 : x
  2. Step 2: Convert to fraction form
    14,650.74/20,219.26 = 8,278.50/x
  3. Step 3: Cross multiply
    14,650.74x = 20,219.26 × 8,278.50
  4. Step 4: Simplify right side
    14,650.74x = 167,385,143.91
  5. Step 5: Solve for x
    x = 167,385,143.91/14,650.74
  6. Step 6: Final answer
    x = 11,425.03

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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.