Home / 15,721.86-23,577.77-5,189.93

Finding the Fourth Proportional to 15,721.86, 23,577.77 and 5,189.93

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Solution

The fourth proportional to 15,721.86, 23,577.77 and 5,189.93 is: 7,783.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,721.86 : 23,577.77 = 5,189.93 : x
  2. Step 2: Convert to fraction form
    15,721.86/23,577.77 = 5,189.93/x
  3. Step 3: Cross multiply
    15,721.86x = 23,577.77 × 5,189.93
  4. Step 4: Simplify right side
    15,721.86x = 122,366,832.02
  5. Step 5: Solve for x
    x = 122,366,832.02/15,721.86
  6. Step 6: Final answer
    x = 7,783.23

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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.