Home / 12,118.21-16,723.04-6,740.71

Finding the Fourth Proportional to 12,118.21, 16,723.04 and 6,740.71

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Solution

The fourth proportional to 12,118.21, 16,723.04 and 6,740.71 is: 9,302.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,118.21 : 16,723.04 = 6,740.71 : x
  2. Step 2: Convert to fraction form
    12,118.21/16,723.04 = 6,740.71/x
  3. Step 3: Cross multiply
    12,118.21x = 16,723.04 × 6,740.71
  4. Step 4: Simplify right side
    12,118.21x = 112,725,087.45
  5. Step 5: Solve for x
    x = 112,725,087.45/12,118.21
  6. Step 6: Final answer
    x = 9,302.13

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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.