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Finding the Fourth Proportional to 13,804.88, 20,710.44 and 5,040.08

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Solution

The fourth proportional to 13,804.88, 20,710.44 and 5,040.08 is: 7,561.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,804.88 : 20,710.44 = 5,040.08 : x
  2. Step 2: Convert to fraction form
    13,804.88/20,710.44 = 5,040.08/x
  3. Step 3: Cross multiply
    13,804.88x = 20,710.44 × 5,040.08
  4. Step 4: Simplify right side
    13,804.88x = 104,382,274.44
  5. Step 5: Solve for x
    x = 104,382,274.44/13,804.88
  6. Step 6: Final answer
    x = 7,561.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.