Home / 12,809.65-19,212.85-4,045.45

Finding the Fourth Proportional to 12,809.65, 19,212.85 and 4,045.45

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Solution

The fourth proportional to 12,809.65, 19,212.85 and 4,045.45 is: 6,067.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,809.65 : 19,212.85 = 4,045.45 : x
  2. Step 2: Convert to fraction form
    12,809.65/19,212.85 = 4,045.45/x
  3. Step 3: Cross multiply
    12,809.65x = 19,212.85 × 4,045.45
  4. Step 4: Simplify right side
    12,809.65x = 77,724,624.03
  5. Step 5: Solve for x
    x = 77,724,624.03/12,809.65
  6. Step 6: Final answer
    x = 6,067.66

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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.