Home / 10,788.60-16,185.60-8,575.80

Finding the Fourth Proportional to 10,788.60, 16,185.60 and 8,575.80

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Solution

The fourth proportional to 10,788.60, 16,185.60 and 8,575.80 is: 12,865.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,788.60 : 16,185.60 = 8,575.80 : x
  2. Step 2: Convert to fraction form
    10,788.60/16,185.60 = 8,575.80/x
  3. Step 3: Cross multiply
    10,788.60x = 16,185.60 × 8,575.80
  4. Step 4: Simplify right side
    10,788.60x = 138,804,468.48
  5. Step 5: Solve for x
    x = 138,804,468.48/10,788.60
  6. Step 6: Final answer
    x = 12,865.85

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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.