Home / 9,845.49-13,586.74-5,369.20

Finding the Fourth Proportional to 9,845.49, 13,586.74 and 5,369.20

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Solution

The fourth proportional to 9,845.49, 13,586.74 and 5,369.20 is: 7,409.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,845.49 : 13,586.74 = 5,369.20 : x
  2. Step 2: Convert to fraction form
    9,845.49/13,586.74 = 5,369.20/x
  3. Step 3: Cross multiply
    9,845.49x = 13,586.74 × 5,369.20
  4. Step 4: Simplify right side
    9,845.49x = 72,949,896.12
  5. Step 5: Solve for x
    x = 72,949,896.12/9,845.49
  6. Step 6: Final answer
    x = 7,409.48

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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.