Home / 12,625.18-18,938.54-5,230.22

Finding the Fourth Proportional to 12,625.18, 18,938.54 and 5,230.22

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Solution

The fourth proportional to 12,625.18, 18,938.54 and 5,230.22 is: 7,845.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,625.18 : 18,938.54 = 5,230.22 : x
  2. Step 2: Convert to fraction form
    12,625.18/18,938.54 = 5,230.22/x
  3. Step 3: Cross multiply
    12,625.18x = 18,938.54 × 5,230.22
  4. Step 4: Simplify right side
    12,625.18x = 99,052,609.84
  5. Step 5: Solve for x
    x = 99,052,609.84/12,625.18
  6. Step 6: Final answer
    x = 7,845.64

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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.