Home / 14,778.88-20,394.69-8,064.56

Finding the Fourth Proportional to 14,778.88, 20,394.69 and 8,064.56

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Solution

The fourth proportional to 14,778.88, 20,394.69 and 8,064.56 is: 11,129.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,778.88 : 20,394.69 = 8,064.56 : x
  2. Step 2: Convert to fraction form
    14,778.88/20,394.69 = 8,064.56/x
  3. Step 3: Cross multiply
    14,778.88x = 20,394.69 × 8,064.56
  4. Step 4: Simplify right side
    14,778.88x = 164,474,221.93
  5. Step 5: Solve for x
    x = 164,474,221.93/14,778.88
  6. Step 6: Final answer
    x = 11,129.00

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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.