Home / 11,720.72-17,582.44-4,703.18

Finding the Fourth Proportional to 11,720.72, 17,582.44 and 4,703.18

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Solution

The fourth proportional to 11,720.72, 17,582.44 and 4,703.18 is: 7,055.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,720.72 : 17,582.44 = 4,703.18 : x
  2. Step 2: Convert to fraction form
    11,720.72/17,582.44 = 4,703.18/x
  3. Step 3: Cross multiply
    11,720.72x = 17,582.44 × 4,703.18
  4. Step 4: Simplify right side
    11,720.72x = 82,693,280.49
  5. Step 5: Solve for x
    x = 82,693,280.49/11,720.72
  6. Step 6: Final answer
    x = 7,055.31

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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.