Home / 7,709.34-10,639.36-4,353.02

Finding the Fourth Proportional to 7,709.34, 10,639.36 and 4,353.02

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Solution

The fourth proportional to 7,709.34, 10,639.36 and 4,353.02 is: 6,007.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,709.34 : 10,639.36 = 4,353.02 : x
  2. Step 2: Convert to fraction form
    7,709.34/10,639.36 = 4,353.02/x
  3. Step 3: Cross multiply
    7,709.34x = 10,639.36 × 4,353.02
  4. Step 4: Simplify right side
    7,709.34x = 46,313,346.87
  5. Step 5: Solve for x
    x = 46,313,346.87/7,709.34
  6. Step 6: Final answer
    x = 6,007.43

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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.