Home / 13,821.24-20,741.10-6,804.60

Finding the Fourth Proportional to 13,821.24, 20,741.10 and 6,804.60

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Solution

The fourth proportional to 13,821.24, 20,741.10 and 6,804.60 is: 10,211.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,821.24 : 20,741.10 = 6,804.60 : x
  2. Step 2: Convert to fraction form
    13,821.24/20,741.10 = 6,804.60/x
  3. Step 3: Cross multiply
    13,821.24x = 20,741.10 × 6,804.60
  4. Step 4: Simplify right side
    13,821.24x = 141,134,889.06
  5. Step 5: Solve for x
    x = 141,134,889.06/13,821.24
  6. Step 6: Final answer
    x = 10,211.45

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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.