Home / 8,918.06-12,307.02-4,939.25

Finding the Fourth Proportional to 8,918.06, 12,307.02 and 4,939.25

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Solution

The fourth proportional to 8,918.06, 12,307.02 and 4,939.25 is: 6,816.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,918.06 : 12,307.02 = 4,939.25 : x
  2. Step 2: Convert to fraction form
    8,918.06/12,307.02 = 4,939.25/x
  3. Step 3: Cross multiply
    8,918.06x = 12,307.02 × 4,939.25
  4. Step 4: Simplify right side
    8,918.06x = 60,787,448.54
  5. Step 5: Solve for x
    x = 60,787,448.54/8,918.06
  6. Step 6: Final answer
    x = 6,816.22

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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.