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Finding the Fourth Proportional to 15,365.98, 23,048.97 and 4,978.54

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Solution

The fourth proportional to 15,365.98, 23,048.97 and 4,978.54 is: 7,467.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,365.98 : 23,048.97 = 4,978.54 : x
  2. Step 2: Convert to fraction form
    15,365.98/23,048.97 = 4,978.54/x
  3. Step 3: Cross multiply
    15,365.98x = 23,048.97 × 4,978.54
  4. Step 4: Simplify right side
    15,365.98x = 114,750,219.10
  5. Step 5: Solve for x
    x = 114,750,219.10/15,365.98
  6. Step 6: Final answer
    x = 7,467.81

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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.