Home / 12,490.02-17,203.89-8,706.42

Finding the Fourth Proportional to 12,490.02, 17,203.89 and 8,706.42

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Solution

The fourth proportional to 12,490.02, 17,203.89 and 8,706.42 is: 11,992.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,490.02 : 17,203.89 = 8,706.42 : x
  2. Step 2: Convert to fraction form
    12,490.02/17,203.89 = 8,706.42/x
  3. Step 3: Cross multiply
    12,490.02x = 17,203.89 × 8,706.42
  4. Step 4: Simplify right side
    12,490.02x = 149,784,291.97
  5. Step 5: Solve for x
    x = 149,784,291.97/12,490.02
  6. Step 6: Final answer
    x = 11,992.32

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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.