Home / 13,181.81-19,772.91-4,863.78

Finding the Fourth Proportional to 13,181.81, 19,772.91 and 4,863.78

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Solution

The fourth proportional to 13,181.81, 19,772.91 and 4,863.78 is: 7,295.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,181.81 : 19,772.91 = 4,863.78 : x
  2. Step 2: Convert to fraction form
    13,181.81/19,772.91 = 4,863.78/x
  3. Step 3: Cross multiply
    13,181.81x = 19,772.91 × 4,863.78
  4. Step 4: Simplify right side
    13,181.81x = 96,171,084.20
  5. Step 5: Solve for x
    x = 96,171,084.20/13,181.81
  6. Step 6: Final answer
    x = 7,295.74

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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.