Home / 14,479.44-19,981.74-8,511.36

Finding the Fourth Proportional to 14,479.44, 19,981.74 and 8,511.36

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Solution

The fourth proportional to 14,479.44, 19,981.74 and 8,511.36 is: 11,745.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,479.44 : 19,981.74 = 8,511.36 : x
  2. Step 2: Convert to fraction form
    14,479.44/19,981.74 = 8,511.36/x
  3. Step 3: Cross multiply
    14,479.44x = 19,981.74 × 8,511.36
  4. Step 4: Simplify right side
    14,479.44x = 170,071,782.57
  5. Step 5: Solve for x
    x = 170,071,782.57/14,479.44
  6. Step 6: Final answer
    x = 11,745.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.