Home / 7,194-9,927.72-4,987.28

Finding the Fourth Proportional to 7,194, 9,927.72 and 4,987.28

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Solution

The fourth proportional to 7,194, 9,927.72 and 4,987.28 is: 6,882.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,194 : 9,927.72 = 4,987.28 : x
  2. Step 2: Convert to fraction form
    7,194/9,927.72 = 4,987.28/x
  3. Step 3: Cross multiply
    7,194x = 9,927.72 × 4,987.28
  4. Step 4: Simplify right side
    7,194x = 49,512,319.40
  5. Step 5: Solve for x
    x = 49,512,319.40/7,194
  6. Step 6: Final answer
    x = 6,882.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.