Home / 12,706.36-19,062.78-4,915.72

Finding the Fourth Proportional to 12,706.36, 19,062.78 and 4,915.72

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Solution

The fourth proportional to 12,706.36, 19,062.78 and 4,915.72 is: 7,374.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,706.36 : 19,062.78 = 4,915.72 : x
  2. Step 2: Convert to fraction form
    12,706.36/19,062.78 = 4,915.72/x
  3. Step 3: Cross multiply
    12,706.36x = 19,062.78 × 4,915.72
  4. Step 4: Simplify right side
    12,706.36x = 93,707,288.90
  5. Step 5: Solve for x
    x = 93,707,288.90/12,706.36
  6. Step 6: Final answer
    x = 7,374.83

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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.