Home / 6,918.51-10,368.03-5,188.35

Finding the Fourth Proportional to 6,918.51, 10,368.03 and 5,188.35

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Solution

The fourth proportional to 6,918.51, 10,368.03 and 5,188.35 is: 7,775.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,918.51 : 10,368.03 = 5,188.35 : x
  2. Step 2: Convert to fraction form
    6,918.51/10,368.03 = 5,188.35/x
  3. Step 3: Cross multiply
    6,918.51x = 10,368.03 × 5,188.35
  4. Step 4: Simplify right side
    6,918.51x = 53,792,968.45
  5. Step 5: Solve for x
    x = 53,792,968.45/6,918.51
  6. Step 6: Final answer
    x = 7,775.22

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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.