Home / 12,237.28-16,892.62-8,263.78

Finding the Fourth Proportional to 12,237.28, 16,892.62 and 8,263.78

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Solution

The fourth proportional to 12,237.28, 16,892.62 and 8,263.78 is: 11,407.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,237.28 : 16,892.62 = 8,263.78 : x
  2. Step 2: Convert to fraction form
    12,237.28/16,892.62 = 8,263.78/x
  3. Step 3: Cross multiply
    12,237.28x = 16,892.62 × 8,263.78
  4. Step 4: Simplify right side
    12,237.28x = 139,596,895.30
  5. Step 5: Solve for x
    x = 139,596,895.30/12,237.28
  6. Step 6: Final answer
    x = 11,407.51

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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.