Home / 12,588.36-17,374.50-8,620.44

Finding the Fourth Proportional to 12,588.36, 17,374.50 and 8,620.44

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Solution

The fourth proportional to 12,588.36, 17,374.50 and 8,620.44 is: 11,897.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,588.36 : 17,374.50 = 8,620.44 : x
  2. Step 2: Convert to fraction form
    12,588.36/17,374.50 = 8,620.44/x
  3. Step 3: Cross multiply
    12,588.36x = 17,374.50 × 8,620.44
  4. Step 4: Simplify right side
    12,588.36x = 149,775,834.78
  5. Step 5: Solve for x
    x = 149,775,834.78/12,588.36
  6. Step 6: Final answer
    x = 11,897.96

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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.