Home / 12,801.12-19,187.88-6,212.64

Finding the Fourth Proportional to 12,801.12, 19,187.88 and 6,212.64

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Solution

The fourth proportional to 12,801.12, 19,187.88 and 6,212.64 is: 9,312.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,801.12 : 19,187.88 = 6,212.64 : x
  2. Step 2: Convert to fraction form
    12,801.12/19,187.88 = 6,212.64/x
  3. Step 3: Cross multiply
    12,801.12x = 19,187.88 × 6,212.64
  4. Step 4: Simplify right side
    12,801.12x = 119,207,390.80
  5. Step 5: Solve for x
    x = 119,207,390.80/12,801.12
  6. Step 6: Final answer
    x = 9,312.26

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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.