Home / 11,087.80-16,647.90-8,625.40

Finding the Fourth Proportional to 11,087.80, 16,647.90 and 8,625.40

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Solution

The fourth proportional to 11,087.80, 16,647.90 and 8,625.40 is: 12,950.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,087.80 : 16,647.90 = 8,625.40 : x
  2. Step 2: Convert to fraction form
    11,087.80/16,647.90 = 8,625.40/x
  3. Step 3: Cross multiply
    11,087.80x = 16,647.90 × 8,625.40
  4. Step 4: Simplify right side
    11,087.80x = 143,594,796.66
  5. Step 5: Solve for x
    x = 143,594,796.66/11,087.80
  6. Step 6: Final answer
    x = 12,950.70

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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.