Home / 13,868.46-20,815.04-6,477.01

Finding the Fourth Proportional to 13,868.46, 20,815.04 and 6,477.01

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Solution

The fourth proportional to 13,868.46, 20,815.04 and 6,477.01 is: 9,721.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,868.46 : 20,815.04 = 6,477.01 : x
  2. Step 2: Convert to fraction form
    13,868.46/20,815.04 = 6,477.01/x
  3. Step 3: Cross multiply
    13,868.46x = 20,815.04 × 6,477.01
  4. Step 4: Simplify right side
    13,868.46x = 134,819,186.39
  5. Step 5: Solve for x
    x = 134,819,186.39/13,868.46
  6. Step 6: Final answer
    x = 9,721.28

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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.