Home / 9,828.18-13,558.44-6,640.42

Finding the Fourth Proportional to 9,828.18, 13,558.44 and 6,640.42

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Solution

The fourth proportional to 9,828.18, 13,558.44 and 6,640.42 is: 9,160.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,828.18 : 13,558.44 = 6,640.42 : x
  2. Step 2: Convert to fraction form
    9,828.18/13,558.44 = 6,640.42/x
  3. Step 3: Cross multiply
    9,828.18x = 13,558.44 × 6,640.42
  4. Step 4: Simplify right side
    9,828.18x = 90,033,736.14
  5. Step 5: Solve for x
    x = 90,033,736.14/9,828.18
  6. Step 6: Final answer
    x = 9,160.77

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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.