Home / 9,918.45-14,888.61-4,986.77

Finding the Fourth Proportional to 9,918.45, 14,888.61 and 4,986.77

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Solution

The fourth proportional to 9,918.45, 14,888.61 and 4,986.77 is: 7,485.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,918.45 : 14,888.61 = 4,986.77 : x
  2. Step 2: Convert to fraction form
    9,918.45/14,888.61 = 4,986.77/x
  3. Step 3: Cross multiply
    9,918.45x = 14,888.61 × 4,986.77
  4. Step 4: Simplify right side
    9,918.45x = 74,245,999.25
  5. Step 5: Solve for x
    x = 74,245,999.25/9,918.45
  6. Step 6: Final answer
    x = 7,485.65

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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.