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Finding the Fourth Proportional to 12,802.68, 19,203.84 and 4,480.38

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Solution

The fourth proportional to 12,802.68, 19,203.84 and 4,480.38 is: 6,720.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,802.68 : 19,203.84 = 4,480.38 : x
  2. Step 2: Convert to fraction form
    12,802.68/19,203.84 = 4,480.38/x
  3. Step 3: Cross multiply
    12,802.68x = 19,203.84 × 4,480.38
  4. Step 4: Simplify right side
    12,802.68x = 86,040,500.66
  5. Step 5: Solve for x
    x = 86,040,500.66/12,802.68
  6. Step 6: Final answer
    x = 6,720.51

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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.