Home / 14,778.99-20,394.83-8,064.47

Finding the Fourth Proportional to 14,778.99, 20,394.83 and 8,064.47

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Solution

The fourth proportional to 14,778.99, 20,394.83 and 8,064.47 is: 11,128.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,778.99 : 20,394.83 = 8,064.47 : x
  2. Step 2: Convert to fraction form
    14,778.99/20,394.83 = 8,064.47/x
  3. Step 3: Cross multiply
    14,778.99x = 20,394.83 × 8,064.47
  4. Step 4: Simplify right side
    14,778.99x = 164,473,494.69
  5. Step 5: Solve for x
    x = 164,473,494.69/14,778.99
  6. Step 6: Final answer
    x = 11,128.87

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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.