Home / 11,821.02-17,731.53-4,894.98

Finding the Fourth Proportional to 11,821.02, 17,731.53 and 4,894.98

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Solution

The fourth proportional to 11,821.02, 17,731.53 and 4,894.98 is: 7,342.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,821.02 : 17,731.53 = 4,894.98 : x
  2. Step 2: Convert to fraction form
    11,821.02/17,731.53 = 4,894.98/x
  3. Step 3: Cross multiply
    11,821.02x = 17,731.53 × 4,894.98
  4. Step 4: Simplify right side
    11,821.02x = 86,795,484.72
  5. Step 5: Solve for x
    x = 86,795,484.72/11,821.02
  6. Step 6: Final answer
    x = 7,342.47

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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.