Home / 7,015.14-9,680.95-3,828.46

Finding the Fourth Proportional to 7,015.14, 9,680.95 and 3,828.46

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Solution

The fourth proportional to 7,015.14, 9,680.95 and 3,828.46 is: 5,283.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,015.14 : 9,680.95 = 3,828.46 : x
  2. Step 2: Convert to fraction form
    7,015.14/9,680.95 = 3,828.46/x
  3. Step 3: Cross multiply
    7,015.14x = 9,680.95 × 3,828.46
  4. Step 4: Simplify right side
    7,015.14x = 37,063,088.89
  5. Step 5: Solve for x
    x = 37,063,088.89/7,015.14
  6. Step 6: Final answer
    x = 5,283.30

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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.