Home / 9,813.36-13,554.60-7,120.26

Finding the Fourth Proportional to 9,813.36, 13,554.60 and 7,120.26

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Solution

The fourth proportional to 9,813.36, 13,554.60 and 7,120.26 is: 9,834.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,813.36 : 13,554.60 = 7,120.26 : x
  2. Step 2: Convert to fraction form
    9,813.36/13,554.60 = 7,120.26/x
  3. Step 3: Cross multiply
    9,813.36x = 13,554.60 × 7,120.26
  4. Step 4: Simplify right side
    9,813.36x = 96,512,313.30
  5. Step 5: Solve for x
    x = 96,512,313.30/9,813.36
  6. Step 6: Final answer
    x = 9,834.78

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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.