Home / 9,051.01-13,578.32-3,128.11

Finding the Fourth Proportional to 9,051.01, 13,578.32 and 3,128.11

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Solution

The fourth proportional to 9,051.01, 13,578.32 and 3,128.11 is: 4,692.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,051.01 : 13,578.32 = 3,128.11 : x
  2. Step 2: Convert to fraction form
    9,051.01/13,578.32 = 3,128.11/x
  3. Step 3: Cross multiply
    9,051.01x = 13,578.32 × 3,128.11
  4. Step 4: Simplify right side
    9,051.01x = 42,474,478.58
  5. Step 5: Solve for x
    x = 42,474,478.58/9,051.01
  6. Step 6: Final answer
    x = 4,692.79

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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.