Home / 12,115.16-16,717.98-6,808.94

Finding the Fourth Proportional to 12,115.16, 16,717.98 and 6,808.94

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Solution

The fourth proportional to 12,115.16, 16,717.98 and 6,808.94 is: 9,395.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115.16 : 16,717.98 = 6,808.94 : x
  2. Step 2: Convert to fraction form
    12,115.16/16,717.98 = 6,808.94/x
  3. Step 3: Cross multiply
    12,115.16x = 16,717.98 × 6,808.94
  4. Step 4: Simplify right side
    12,115.16x = 113,831,722.74
  5. Step 5: Solve for x
    x = 113,831,722.74/12,115.16
  6. Step 6: Final answer
    x = 9,395.81

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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.