Home / 19,857.75-27,403.59-10,783.03

Finding the Fourth Proportional to 19,857.75, 27,403.59 and 10,783.03

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Solution

The fourth proportional to 19,857.75, 27,403.59 and 10,783.03 is: 14,880.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,857.75 : 27,403.59 = 10,783.03 : x
  2. Step 2: Convert to fraction form
    19,857.75/27,403.59 = 10,783.03/x
  3. Step 3: Cross multiply
    19,857.75x = 27,403.59 × 10,783.03
  4. Step 4: Simplify right side
    19,857.75x = 295,493,822.45
  5. Step 5: Solve for x
    x = 295,493,822.45/19,857.75
  6. Step 6: Final answer
    x = 14,880.53

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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.