Home / 19,215.63-26,521.83-12,140.69

Finding the Fourth Proportional to 19,215.63, 26,521.83 and 12,140.69

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Solution

The fourth proportional to 19,215.63, 26,521.83 and 12,140.69 is: 16,756.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,215.63 : 26,521.83 = 12,140.69 : x
  2. Step 2: Convert to fraction form
    19,215.63/26,521.83 = 12,140.69/x
  3. Step 3: Cross multiply
    19,215.63x = 26,521.83 × 12,140.69
  4. Step 4: Simplify right side
    19,215.63x = 321,993,183.65
  5. Step 5: Solve for x
    x = 321,993,183.65/19,215.63
  6. Step 6: Final answer
    x = 16,756.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.