Home / 13,197.02-18,194.91-8,479.58

Finding the Fourth Proportional to 13,197.02, 18,194.91 and 8,479.58

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Solution

The fourth proportional to 13,197.02, 18,194.91 and 8,479.58 is: 11,690.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,197.02 : 18,194.91 = 8,479.58 : x
  2. Step 2: Convert to fraction form
    13,197.02/18,194.91 = 8,479.58/x
  3. Step 3: Cross multiply
    13,197.02x = 18,194.91 × 8,479.58
  4. Step 4: Simplify right side
    13,197.02x = 154,285,194.94
  5. Step 5: Solve for x
    x = 154,285,194.94/13,197.02
  6. Step 6: Final answer
    x = 11,690.91

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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.