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Finding the Fourth Proportional to 7,120.16, 9,829.14 and 4,763.84

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Solution

The fourth proportional to 7,120.16, 9,829.14 and 4,763.84 is: 6,576.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120.16 : 9,829.14 = 4,763.84 : x
  2. Step 2: Convert to fraction form
    7,120.16/9,829.14 = 4,763.84/x
  3. Step 3: Cross multiply
    7,120.16x = 9,829.14 × 4,763.84
  4. Step 4: Simplify right side
    7,120.16x = 46,824,450.30
  5. Step 5: Solve for x
    x = 46,824,450.30/7,120.16
  6. Step 6: Final answer
    x = 6,576.32

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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.