Home / 12,466.50-18,707.85-6,627.21

Finding the Fourth Proportional to 12,466.50, 18,707.85 and 6,627.21

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Solution

The fourth proportional to 12,466.50, 18,707.85 and 6,627.21 is: 9,945.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,466.50 : 18,707.85 = 6,627.21 : x
  2. Step 2: Convert to fraction form
    12,466.50/18,707.85 = 6,627.21/x
  3. Step 3: Cross multiply
    12,466.50x = 18,707.85 × 6,627.21
  4. Step 4: Simplify right side
    12,466.50x = 123,980,850.60
  5. Step 5: Solve for x
    x = 123,980,850.60/12,466.50
  6. Step 6: Final answer
    x = 9,945.12

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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.