Home / 9,813.35-13,542.39-5,337.09

Finding the Fourth Proportional to 9,813.35, 13,542.39 and 5,337.09

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Solution

The fourth proportional to 9,813.35, 13,542.39 and 5,337.09 is: 7,365.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,813.35 : 13,542.39 = 5,337.09 : x
  2. Step 2: Convert to fraction form
    9,813.35/13,542.39 = 5,337.09/x
  3. Step 3: Cross multiply
    9,813.35x = 13,542.39 × 5,337.09
  4. Step 4: Simplify right side
    9,813.35x = 72,276,954.25
  5. Step 5: Solve for x
    x = 72,276,954.25/9,813.35
  6. Step 6: Final answer
    x = 7,365.16

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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.