Home / 9,880.80-14,817.60-3,307.20

Finding the Fourth Proportional to 9,880.80, 14,817.60 and 3,307.20

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Solution

The fourth proportional to 9,880.80, 14,817.60 and 3,307.20 is: 4,959.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,880.80 : 14,817.60 = 3,307.20 : x
  2. Step 2: Convert to fraction form
    9,880.80/14,817.60 = 3,307.20/x
  3. Step 3: Cross multiply
    9,880.80x = 14,817.60 × 3,307.20
  4. Step 4: Simplify right side
    9,880.80x = 49,004,766.72
  5. Step 5: Solve for x
    x = 49,004,766.72/9,880.80
  6. Step 6: Final answer
    x = 4,959.60

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1.5x scale

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.