Home / 7,812.51-11,720.58-2,265.96

Finding the Fourth Proportional to 7,812.51, 11,720.58 and 2,265.96

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Solution

The fourth proportional to 7,812.51, 11,720.58 and 2,265.96 is: 3,399.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,812.51 : 11,720.58 = 2,265.96 : x
  2. Step 2: Convert to fraction form
    7,812.51/11,720.58 = 2,265.96/x
  3. Step 3: Cross multiply
    7,812.51x = 11,720.58 × 2,265.96
  4. Step 4: Simplify right side
    7,812.51x = 26,558,365.46
  5. Step 5: Solve for x
    x = 26,558,365.46/7,812.51
  6. Step 6: Final answer
    x = 3,399.47

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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.