Home / 13,511.14-20,268.74-4,744.51

Finding the Fourth Proportional to 13,511.14, 20,268.74 and 4,744.51

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Solution

The fourth proportional to 13,511.14, 20,268.74 and 4,744.51 is: 7,117.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,511.14 : 20,268.74 = 4,744.51 : x
  2. Step 2: Convert to fraction form
    13,511.14/20,268.74 = 4,744.51/x
  3. Step 3: Cross multiply
    13,511.14x = 20,268.74 × 4,744.51
  4. Step 4: Simplify right side
    13,511.14x = 96,165,239.62
  5. Step 5: Solve for x
    x = 96,165,239.62/13,511.14
  6. Step 6: Final answer
    x = 7,117.48

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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.