Home / 12,769.40-19,124.40-12,326.07

Finding the Fourth Proportional to 12,769.40, 19,124.40 and 12,326.07

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Solution

The fourth proportional to 12,769.40, 19,124.40 and 12,326.07 is: 18,460.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,769.40 : 19,124.40 = 12,326.07 : x
  2. Step 2: Convert to fraction form
    12,769.40/19,124.40 = 12,326.07/x
  3. Step 3: Cross multiply
    12,769.40x = 19,124.40 × 12,326.07
  4. Step 4: Simplify right side
    12,769.40x = 235,728,811.05
  5. Step 5: Solve for x
    x = 235,728,811.05/12,769.40
  6. Step 6: Final answer
    x = 18,460.45

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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.