Home / 12,531.45-18,795.54-4,739.25

Finding the Fourth Proportional to 12,531.45, 18,795.54 and 4,739.25

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Solution

The fourth proportional to 12,531.45, 18,795.54 and 4,739.25 is: 7,108.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,531.45 : 18,795.54 = 4,739.25 : x
  2. Step 2: Convert to fraction form
    12,531.45/18,795.54 = 4,739.25/x
  3. Step 3: Cross multiply
    12,531.45x = 18,795.54 × 4,739.25
  4. Step 4: Simplify right side
    12,531.45x = 89,076,762.95
  5. Step 5: Solve for x
    x = 89,076,762.95/12,531.45
  6. Step 6: Final answer
    x = 7,108.26

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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.