Home / 12,089.39-16,679.21-7,049.45

Finding the Fourth Proportional to 12,089.39, 16,679.21 and 7,049.45

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Solution

The fourth proportional to 12,089.39, 16,679.21 and 7,049.45 is: 9,725.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,089.39 : 16,679.21 = 7,049.45 : x
  2. Step 2: Convert to fraction form
    12,089.39/16,679.21 = 7,049.45/x
  3. Step 3: Cross multiply
    12,089.39x = 16,679.21 × 7,049.45
  4. Step 4: Simplify right side
    12,089.39x = 117,579,263.39
  5. Step 5: Solve for x
    x = 117,579,263.39/12,089.39
  6. Step 6: Final answer
    x = 9,725.83

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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.