Home / 12,963.23-19,448.93-4,078.20

Finding the Fourth Proportional to 12,963.23, 19,448.93 and 4,078.20

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Solution

The fourth proportional to 12,963.23, 19,448.93 and 4,078.20 is: 6,118.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,963.23 : 19,448.93 = 4,078.20 : x
  2. Step 2: Convert to fraction form
    12,963.23/19,448.93 = 4,078.20/x
  3. Step 3: Cross multiply
    12,963.23x = 19,448.93 × 4,078.20
  4. Step 4: Simplify right side
    12,963.23x = 79,316,626.33
  5. Step 5: Solve for x
    x = 79,316,626.33/12,963.23
  6. Step 6: Final answer
    x = 6,118.59

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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.