Home / 11,075.60-16,623.12-8,305.40

Finding the Fourth Proportional to 11,075.60, 16,623.12 and 8,305.40

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Solution

The fourth proportional to 11,075.60, 16,623.12 and 8,305.40 is: 12,465.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,075.60 : 16,623.12 = 8,305.40 : x
  2. Step 2: Convert to fraction form
    11,075.60/16,623.12 = 8,305.40/x
  3. Step 3: Cross multiply
    11,075.60x = 16,623.12 × 8,305.40
  4. Step 4: Simplify right side
    11,075.60x = 138,061,660.85
  5. Step 5: Solve for x
    x = 138,061,660.85/11,075.60
  6. Step 6: Final answer
    x = 12,465.39

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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.