Home / 13,965.05-20,928.04-10,830.35

Finding the Fourth Proportional to 13,965.05, 20,928.04 and 10,830.35

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Solution

The fourth proportional to 13,965.05, 20,928.04 and 10,830.35 is: 16,230.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,965.05 : 20,928.04 = 10,830.35 : x
  2. Step 2: Convert to fraction form
    13,965.05/20,928.04 = 10,830.35/x
  3. Step 3: Cross multiply
    13,965.05x = 20,928.04 × 10,830.35
  4. Step 4: Simplify right side
    13,965.05x = 226,658,023.26
  5. Step 5: Solve for x
    x = 226,658,023.26/13,965.05
  6. Step 6: Final answer
    x = 16,230.37

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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.