Home / 13,951.58-19,277.60-10,991.03

Finding the Fourth Proportional to 13,951.58, 19,277.60 and 10,991.03

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Solution

The fourth proportional to 13,951.58, 19,277.60 and 10,991.03 is: 15,186.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,951.58 : 19,277.60 = 10,991.03 : x
  2. Step 2: Convert to fraction form
    13,951.58/19,277.60 = 10,991.03/x
  3. Step 3: Cross multiply
    13,951.58x = 19,277.60 × 10,991.03
  4. Step 4: Simplify right side
    13,951.58x = 211,880,528.58
  5. Step 5: Solve for x
    x = 211,880,528.58/13,951.58
  6. Step 6: Final answer
    x = 15,186.85

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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.