Home / 13,771.44-19,004.88-7,803.36

Finding the Fourth Proportional to 13,771.44, 19,004.88 and 7,803.36

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Solution

The fourth proportional to 13,771.44, 19,004.88 and 7,803.36 is: 10,768.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,771.44 : 19,004.88 = 7,803.36 : x
  2. Step 2: Convert to fraction form
    13,771.44/19,004.88 = 7,803.36/x
  3. Step 3: Cross multiply
    13,771.44x = 19,004.88 × 7,803.36
  4. Step 4: Simplify right side
    13,771.44x = 148,301,920.40
  5. Step 5: Solve for x
    x = 148,301,920.40/13,771.44
  6. Step 6: Final answer
    x = 10,768.80

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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.