Home / 13,903.56-20,844.42-6,878.64

Finding the Fourth Proportional to 13,903.56, 20,844.42 and 6,878.64

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Solution

The fourth proportional to 13,903.56, 20,844.42 and 6,878.64 is: 10,312.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,903.56 : 20,844.42 = 6,878.64 : x
  2. Step 2: Convert to fraction form
    13,903.56/20,844.42 = 6,878.64/x
  3. Step 3: Cross multiply
    13,903.56x = 20,844.42 × 6,878.64
  4. Step 4: Simplify right side
    13,903.56x = 143,381,261.19
  5. Step 5: Solve for x
    x = 143,381,261.19/13,903.56
  6. Step 6: Final answer
    x = 10,312.56

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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.