Home / 12,553.60-18,776.40-11,246.80

Finding the Fourth Proportional to 12,553.60, 18,776.40 and 11,246.80

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Solution

The fourth proportional to 12,553.60, 18,776.40 and 11,246.80 is: 16,821.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,553.60 : 18,776.40 = 11,246.80 : x
  2. Step 2: Convert to fraction form
    12,553.60/18,776.40 = 11,246.80/x
  3. Step 3: Cross multiply
    12,553.60x = 18,776.40 × 11,246.80
  4. Step 4: Simplify right side
    12,553.60x = 211,174,415.52
  5. Step 5: Solve for x
    x = 211,174,415.52/12,553.60
  6. Step 6: Final answer
    x = 16,821.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.