Home / 13,743.75-20,557.80-12,746.64

Finding the Fourth Proportional to 13,743.75, 20,557.80 and 12,746.64

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Solution

The fourth proportional to 13,743.75, 20,557.80 and 12,746.64 is: 19,066.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,743.75 : 20,557.80 = 12,746.64 : x
  2. Step 2: Convert to fraction form
    13,743.75/20,557.80 = 12,746.64/x
  3. Step 3: Cross multiply
    13,743.75x = 20,557.80 × 12,746.64
  4. Step 4: Simplify right side
    13,743.75x = 262,042,875.79
  5. Step 5: Solve for x
    x = 262,042,875.79/13,743.75
  6. Step 6: Final answer
    x = 19,066.33

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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.