Home / 12,867.30-19,302.39-4,100.22

Finding the Fourth Proportional to 12,867.30, 19,302.39 and 4,100.22

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Solution

The fourth proportional to 12,867.30, 19,302.39 and 4,100.22 is: 6,150.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,867.30 : 19,302.39 = 4,100.22 : x
  2. Step 2: Convert to fraction form
    12,867.30/19,302.39 = 4,100.22/x
  3. Step 3: Cross multiply
    12,867.30x = 19,302.39 × 4,100.22
  4. Step 4: Simplify right side
    12,867.30x = 79,144,045.53
  5. Step 5: Solve for x
    x = 79,144,045.53/12,867.30
  6. Step 6: Final answer
    x = 6,150.79

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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.