Home / 13,652.06-18,839.76-7,683.78

Finding the Fourth Proportional to 13,652.06, 18,839.76 and 7,683.78

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Solution

The fourth proportional to 13,652.06, 18,839.76 and 7,683.78 is: 10,603.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,652.06 : 18,839.76 = 7,683.78 : x
  2. Step 2: Convert to fraction form
    13,652.06/18,839.76 = 7,683.78/x
  3. Step 3: Cross multiply
    13,652.06x = 18,839.76 × 7,683.78
  4. Step 4: Simplify right side
    13,652.06x = 144,760,571.09
  5. Step 5: Solve for x
    x = 144,760,571.09/13,652.06
  6. Step 6: Final answer
    x = 10,603.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.