Home / 12,965.65-19,451.57-4,200.55

Finding the Fourth Proportional to 12,965.65, 19,451.57 and 4,200.55

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Solution

The fourth proportional to 12,965.65, 19,451.57 and 4,200.55 is: 6,301.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,965.65 : 19,451.57 = 4,200.55 : x
  2. Step 2: Convert to fraction form
    12,965.65/19,451.57 = 4,200.55/x
  3. Step 3: Cross multiply
    12,965.65x = 19,451.57 × 4,200.55
  4. Step 4: Simplify right side
    12,965.65x = 81,707,292.36
  5. Step 5: Solve for x
    x = 81,707,292.36/12,965.65
  6. Step 6: Final answer
    x = 6,301.83

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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.