Home / 8,679.98-11,975.54-5,537.18

Finding the Fourth Proportional to 8,679.98, 11,975.54 and 5,537.18

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Solution

The fourth proportional to 8,679.98, 11,975.54 and 5,537.18 is: 7,639.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,679.98 : 11,975.54 = 5,537.18 : x
  2. Step 2: Convert to fraction form
    8,679.98/11,975.54 = 5,537.18/x
  3. Step 3: Cross multiply
    8,679.98x = 11,975.54 × 5,537.18
  4. Step 4: Simplify right side
    8,679.98x = 66,310,720.58
  5. Step 5: Solve for x
    x = 66,310,720.58/8,679.98
  6. Step 6: Final answer
    x = 7,639.50

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1.5x scale

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.