Home / 19,112.80-28,667.04-5,260

Finding the Fourth Proportional to 19,112.80, 28,667.04 and 5,260

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Solution

The fourth proportional to 19,112.80, 28,667.04 and 5,260 is: 7,889.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,112.80 : 28,667.04 = 5,260 : x
  2. Step 2: Convert to fraction form
    19,112.80/28,667.04 = 5,260/x
  3. Step 3: Cross multiply
    19,112.80x = 28,667.04 × 5,260
  4. Step 4: Simplify right side
    19,112.80x = 150,788,630.40
  5. Step 5: Solve for x
    x = 150,788,630.40/19,112.80
  6. Step 6: Final answer
    x = 7,889.41

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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.