Home / 13,818.81-20,734.29-5,055.03

Finding the Fourth Proportional to 13,818.81, 20,734.29 and 5,055.03

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Solution

The fourth proportional to 13,818.81, 20,734.29 and 5,055.03 is: 7,584.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,818.81 : 20,734.29 = 5,055.03 : x
  2. Step 2: Convert to fraction form
    13,818.81/20,734.29 = 5,055.03/x
  3. Step 3: Cross multiply
    13,818.81x = 20,734.29 × 5,055.03
  4. Step 4: Simplify right side
    13,818.81x = 104,812,457.98
  5. Step 5: Solve for x
    x = 104,812,457.98/13,818.81
  6. Step 6: Final answer
    x = 7,584.77

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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.