Home / 7,994.09-11,985.94-3,312.83

Finding the Fourth Proportional to 7,994.09, 11,985.94 and 3,312.83

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Solution

The fourth proportional to 7,994.09, 11,985.94 and 3,312.83 is: 4,967.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,994.09 : 11,985.94 = 3,312.83 : x
  2. Step 2: Convert to fraction form
    7,994.09/11,985.94 = 3,312.83/x
  3. Step 3: Cross multiply
    7,994.09x = 11,985.94 × 3,312.83
  4. Step 4: Simplify right side
    7,994.09x = 39,707,381.61
  5. Step 5: Solve for x
    x = 39,707,381.61/7,994.09
  6. Step 6: Final answer
    x = 4,967.09

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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.