Home / 13,465.26-18,583.23-7,878.06

Finding the Fourth Proportional to 13,465.26, 18,583.23 and 7,878.06

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Solution

The fourth proportional to 13,465.26, 18,583.23 and 7,878.06 is: 10,872.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,465.26 : 18,583.23 = 7,878.06 : x
  2. Step 2: Convert to fraction form
    13,465.26/18,583.23 = 7,878.06/x
  3. Step 3: Cross multiply
    13,465.26x = 18,583.23 × 7,878.06
  4. Step 4: Simplify right side
    13,465.26x = 146,399,800.93
  5. Step 5: Solve for x
    x = 146,399,800.93/13,465.26
  6. Step 6: Final answer
    x = 10,872.41

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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.