Home / 10,956.62-15,071.01-9,605.54

Finding the Fourth Proportional to 10,956.62, 15,071.01 and 9,605.54

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Solution

The fourth proportional to 10,956.62, 15,071.01 and 9,605.54 is: 13,212.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,956.62 : 15,071.01 = 9,605.54 : x
  2. Step 2: Convert to fraction form
    10,956.62/15,071.01 = 9,605.54/x
  3. Step 3: Cross multiply
    10,956.62x = 15,071.01 × 9,605.54
  4. Step 4: Simplify right side
    10,956.62x = 144,765,189.40
  5. Step 5: Solve for x
    x = 144,765,189.40/10,956.62
  6. Step 6: Final answer
    x = 13,212.58

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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.