Home / 13,256.02-18,282.94-8,217.42

Finding the Fourth Proportional to 13,256.02, 18,282.94 and 8,217.42

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Solution

The fourth proportional to 13,256.02, 18,282.94 and 8,217.42 is: 11,333.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,256.02 : 18,282.94 = 8,217.42 : x
  2. Step 2: Convert to fraction form
    13,256.02/18,282.94 = 8,217.42/x
  3. Step 3: Cross multiply
    13,256.02x = 18,282.94 × 8,217.42
  4. Step 4: Simplify right side
    13,256.02x = 150,238,596.81
  5. Step 5: Solve for x
    x = 150,238,596.81/13,256.02
  6. Step 6: Final answer
    x = 11,333.61

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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.