Home / 12,167.49-18,256.01-4,770.68

Finding the Fourth Proportional to 12,167.49, 18,256.01 and 4,770.68

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Solution

The fourth proportional to 12,167.49, 18,256.01 and 4,770.68 is: 7,157.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,167.49 : 18,256.01 = 4,770.68 : x
  2. Step 2: Convert to fraction form
    12,167.49/18,256.01 = 4,770.68/x
  3. Step 3: Cross multiply
    12,167.49x = 18,256.01 × 4,770.68
  4. Step 4: Simplify right side
    12,167.49x = 87,093,603.57
  5. Step 5: Solve for x
    x = 87,093,603.57/12,167.49
  6. Step 6: Final answer
    x = 7,157.89

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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.