Home / 19,919.08-29,878.62-6,772.84

Finding the Fourth Proportional to 19,919.08, 29,878.62 and 6,772.84

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Solution

The fourth proportional to 19,919.08, 29,878.62 and 6,772.84 is: 10,159.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,919.08 : 29,878.62 = 6,772.84 : x
  2. Step 2: Convert to fraction form
    19,919.08/29,878.62 = 6,772.84/x
  3. Step 3: Cross multiply
    19,919.08x = 29,878.62 × 6,772.84
  4. Step 4: Simplify right side
    19,919.08x = 202,363,112.68
  5. Step 5: Solve for x
    x = 202,363,112.68/19,919.08
  6. Step 6: Final answer
    x = 10,159.26

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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.