Home / 12,899.25-19,351.71-4,579.74

Finding the Fourth Proportional to 12,899.25, 19,351.71 and 4,579.74

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Solution

The fourth proportional to 12,899.25, 19,351.71 and 4,579.74 is: 6,870.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,899.25 : 19,351.71 = 4,579.74 : x
  2. Step 2: Convert to fraction form
    12,899.25/19,351.71 = 4,579.74/x
  3. Step 3: Cross multiply
    12,899.25x = 19,351.71 × 4,579.74
  4. Step 4: Simplify right side
    12,899.25x = 88,625,800.36
  5. Step 5: Solve for x
    x = 88,625,800.36/12,899.25
  6. Step 6: Final answer
    x = 6,870.62

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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.