Home / 9,360.88-12,918.02-5,112

Finding the Fourth Proportional to 9,360.88, 12,918.02 and 5,112

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Solution

The fourth proportional to 9,360.88, 12,918.02 and 5,112 is: 7,054.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,360.88 : 12,918.02 = 5,112 : x
  2. Step 2: Convert to fraction form
    9,360.88/12,918.02 = 5,112/x
  3. Step 3: Cross multiply
    9,360.88x = 12,918.02 × 5,112
  4. Step 4: Simplify right side
    9,360.88x = 66,036,918.24
  5. Step 5: Solve for x
    x = 66,036,918.24/9,360.88
  6. Step 6: Final answer
    x = 7,054.56

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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.