Home / 9,814.78-13,544.40-5,338.60

Finding the Fourth Proportional to 9,814.78, 13,544.40 and 5,338.60

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Solution

The fourth proportional to 9,814.78, 13,544.40 and 5,338.60 is: 7,367.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,814.78 : 13,544.40 = 5,338.60 : x
  2. Step 2: Convert to fraction form
    9,814.78/13,544.40 = 5,338.60/x
  3. Step 3: Cross multiply
    9,814.78x = 13,544.40 × 5,338.60
  4. Step 4: Simplify right side
    9,814.78x = 72,308,133.84
  5. Step 5: Solve for x
    x = 72,308,133.84/9,814.78
  6. Step 6: Final answer
    x = 7,367.27

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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.