Home / 12,817.79-19,235.27-4,497.85

Finding the Fourth Proportional to 12,817.79, 19,235.27 and 4,497.85

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Solution

The fourth proportional to 12,817.79, 19,235.27 and 4,497.85 is: 6,749.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,817.79 : 19,235.27 = 4,497.85 : x
  2. Step 2: Convert to fraction form
    12,817.79/19,235.27 = 4,497.85/x
  3. Step 3: Cross multiply
    12,817.79x = 19,235.27 × 4,497.85
  4. Step 4: Simplify right side
    12,817.79x = 86,517,240.50
  5. Step 5: Solve for x
    x = 86,517,240.50/12,817.79
  6. Step 6: Final answer
    x = 6,749.78

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Double scale
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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.