Home / 12,696.15-19,044.23-4,378.55

Finding the Fourth Proportional to 12,696.15, 19,044.23 and 4,378.55

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Solution

The fourth proportional to 12,696.15, 19,044.23 and 4,378.55 is: 6,567.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,696.15 : 19,044.23 = 4,378.55 : x
  2. Step 2: Convert to fraction form
    12,696.15/19,044.23 = 4,378.55/x
  3. Step 3: Cross multiply
    12,696.15x = 19,044.23 × 4,378.55
  4. Step 4: Simplify right side
    12,696.15x = 83,386,113.27
  5. Step 5: Solve for x
    x = 83,386,113.27/12,696.15
  6. Step 6: Final answer
    x = 6,567.83

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Double scale
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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.