Home / 12,838.71-19,259.15-4,071.81

Finding the Fourth Proportional to 12,838.71, 19,259.15 and 4,071.81

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Solution

The fourth proportional to 12,838.71, 19,259.15 and 4,071.81 is: 6,108.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,838.71 : 19,259.15 = 4,071.81 : x
  2. Step 2: Convert to fraction form
    12,838.71/19,259.15 = 4,071.81/x
  3. Step 3: Cross multiply
    12,838.71x = 19,259.15 × 4,071.81
  4. Step 4: Simplify right side
    12,838.71x = 78,419,579.20
  5. Step 5: Solve for x
    x = 78,419,579.20/12,838.71
  6. Step 6: Final answer
    x = 6,108.06

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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.