Home / 7,914.51-10,921.99-4,329.50

Finding the Fourth Proportional to 7,914.51, 10,921.99 and 4,329.50

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Solution

The fourth proportional to 7,914.51, 10,921.99 and 4,329.50 is: 5,974.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,914.51 : 10,921.99 = 4,329.50 : x
  2. Step 2: Convert to fraction form
    7,914.51/10,921.99 = 4,329.50/x
  3. Step 3: Cross multiply
    7,914.51x = 10,921.99 × 4,329.50
  4. Step 4: Simplify right side
    7,914.51x = 47,286,759.83
  5. Step 5: Solve for x
    x = 47,286,759.83/7,914.51
  6. Step 6: Final answer
    x = 5,974.69

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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.