Home / 12,623.21-17,420.10-7,244.20

Finding the Fourth Proportional to 12,623.21, 17,420.10 and 7,244.20

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Solution

The fourth proportional to 12,623.21, 17,420.10 and 7,244.20 is: 9,997.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,623.21 : 17,420.10 = 7,244.20 : x
  2. Step 2: Convert to fraction form
    12,623.21/17,420.10 = 7,244.20/x
  3. Step 3: Cross multiply
    12,623.21x = 17,420.10 × 7,244.20
  4. Step 4: Simplify right side
    12,623.21x = 126,194,683.03
  5. Step 5: Solve for x
    x = 126,194,683.03/12,623.21
  6. Step 6: Final answer
    x = 9,997.04

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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.