Home / 12,713.21-19,065.14-4,391.09

Finding the Fourth Proportional to 12,713.21, 19,065.14 and 4,391.09

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Solution

The fourth proportional to 12,713.21, 19,065.14 and 4,391.09 is: 6,585.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,713.21 : 19,065.14 = 4,391.09 : x
  2. Step 2: Convert to fraction form
    12,713.21/19,065.14 = 4,391.09/x
  3. Step 3: Cross multiply
    12,713.21x = 19,065.14 × 4,391.09
  4. Step 4: Simplify right side
    12,713.21x = 83,716,723.65
  5. Step 5: Solve for x
    x = 83,716,723.65/12,713.21
  6. Step 6: Final answer
    x = 6,585.02

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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.