Home / 11,619.54-17,430.47-3,720.07

Finding the Fourth Proportional to 11,619.54, 17,430.47 and 3,720.07

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Solution

The fourth proportional to 11,619.54, 17,430.47 and 3,720.07 is: 5,580.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,619.54 : 17,430.47 = 3,720.07 : x
  2. Step 2: Convert to fraction form
    11,619.54/17,430.47 = 3,720.07/x
  3. Step 3: Cross multiply
    11,619.54x = 17,430.47 × 3,720.07
  4. Step 4: Simplify right side
    11,619.54x = 64,842,599.72
  5. Step 5: Solve for x
    x = 64,842,599.72/11,619.54
  6. Step 6: Final answer
    x = 5,580.48

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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.