Home / 19,409.54-26,776.86-12,683.49

Finding the Fourth Proportional to 19,409.54, 26,776.86 and 12,683.49

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Solution

The fourth proportional to 19,409.54, 26,776.86 and 12,683.49 is: 17,497.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,409.54 : 26,776.86 = 12,683.49 : x
  2. Step 2: Convert to fraction form
    19,409.54/26,776.86 = 12,683.49/x
  3. Step 3: Cross multiply
    19,409.54x = 26,776.86 × 12,683.49
  4. Step 4: Simplify right side
    19,409.54x = 339,623,888.07
  5. Step 5: Solve for x
    x = 339,623,888.07/19,409.54
  6. Step 6: Final answer
    x = 17,497.79

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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.