Home / 12,931.58-19,397.37-4,166.66

Finding the Fourth Proportional to 12,931.58, 19,397.37 and 4,166.66

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Solution

The fourth proportional to 12,931.58, 19,397.37 and 4,166.66 is: 6,249.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,931.58 : 19,397.37 = 4,166.66 : x
  2. Step 2: Convert to fraction form
    12,931.58/19,397.37 = 4,166.66/x
  3. Step 3: Cross multiply
    12,931.58x = 19,397.37 × 4,166.66
  4. Step 4: Simplify right side
    12,931.58x = 80,822,245.68
  5. Step 5: Solve for x
    x = 80,822,245.68/12,931.58
  6. Step 6: Final answer
    x = 6,249.99

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.