Home / 14,121.32-19,479.32-8,806.91

Finding the Fourth Proportional to 14,121.32, 19,479.32 and 8,806.91

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Solution

The fourth proportional to 14,121.32, 19,479.32 and 8,806.91 is: 12,148.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.32 : 19,479.32 = 8,806.91 : x
  2. Step 2: Convert to fraction form
    14,121.32/19,479.32 = 8,806.91/x
  3. Step 3: Cross multiply
    14,121.32x = 19,479.32 × 8,806.91
  4. Step 4: Simplify right side
    14,121.32x = 171,552,509.70
  5. Step 5: Solve for x
    x = 171,552,509.70/14,121.32
  6. Step 6: Final answer
    x = 12,148.48

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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.