Home / 13,916.36-19,204.46-7,628.72

Finding the Fourth Proportional to 13,916.36, 19,204.46 and 7,628.72

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Solution

The fourth proportional to 13,916.36, 19,204.46 and 7,628.72 is: 10,527.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,916.36 : 19,204.46 = 7,628.72 : x
  2. Step 2: Convert to fraction form
    13,916.36/19,204.46 = 7,628.72/x
  3. Step 3: Cross multiply
    13,916.36x = 19,204.46 × 7,628.72
  4. Step 4: Simplify right side
    13,916.36x = 146,505,448.09
  5. Step 5: Solve for x
    x = 146,505,448.09/13,916.36
  6. Step 6: Final answer
    x = 10,527.57

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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.