Home / 12,118.25-16,723.01-6,740.63

Finding the Fourth Proportional to 12,118.25, 16,723.01 and 6,740.63

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Solution

The fourth proportional to 12,118.25, 16,723.01 and 6,740.63 is: 9,301.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,118.25 : 16,723.01 = 6,740.63 : x
  2. Step 2: Convert to fraction form
    12,118.25/16,723.01 = 6,740.63/x
  3. Step 3: Cross multiply
    12,118.25x = 16,723.01 × 6,740.63
  4. Step 4: Simplify right side
    12,118.25x = 112,723,589.19
  5. Step 5: Solve for x
    x = 112,723,589.19/12,118.25
  6. Step 6: Final answer
    x = 9,301.97

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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.