Home / 12,193.22-16,822.75-7,157.35

Finding the Fourth Proportional to 12,193.22, 16,822.75 and 7,157.35

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Solution

The fourth proportional to 12,193.22, 16,822.75 and 7,157.35 is: 9,874.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,193.22 : 16,822.75 = 7,157.35 : x
  2. Step 2: Convert to fraction form
    12,193.22/16,822.75 = 7,157.35/x
  3. Step 3: Cross multiply
    12,193.22x = 16,822.75 × 7,157.35
  4. Step 4: Simplify right side
    12,193.22x = 120,406,309.71
  5. Step 5: Solve for x
    x = 120,406,309.71/12,193.22
  6. Step 6: Final answer
    x = 9,874.86

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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.