Home / 12,959.08-19,435.79-4,639.66

Finding the Fourth Proportional to 12,959.08, 19,435.79 and 4,639.66

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Solution

The fourth proportional to 12,959.08, 19,435.79 and 4,639.66 is: 6,958.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,959.08 : 19,435.79 = 4,639.66 : x
  2. Step 2: Convert to fraction form
    12,959.08/19,435.79 = 4,639.66/x
  3. Step 3: Cross multiply
    12,959.08x = 19,435.79 × 4,639.66
  4. Step 4: Simplify right side
    12,959.08x = 90,175,420.44
  5. Step 5: Solve for x
    x = 90,175,420.44/12,959.08
  6. Step 6: Final answer
    x = 6,958.48

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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.