Home / 9,918.12-14,880.74-4,370.80

Finding the Fourth Proportional to 9,918.12, 14,880.74 and 4,370.80

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Solution

The fourth proportional to 9,918.12, 14,880.74 and 4,370.80 is: 6,557.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,918.12 : 14,880.74 = 4,370.80 : x
  2. Step 2: Convert to fraction form
    9,918.12/14,880.74 = 4,370.80/x
  3. Step 3: Cross multiply
    9,918.12x = 14,880.74 × 4,370.80
  4. Step 4: Simplify right side
    9,918.12x = 65,040,738.39
  5. Step 5: Solve for x
    x = 65,040,738.39/9,918.12
  6. Step 6: Final answer
    x = 6,557.77

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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.