Home / 13,812.54-19,059.16-7,761.58

Finding the Fourth Proportional to 13,812.54, 19,059.16 and 7,761.58

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Solution

The fourth proportional to 13,812.54, 19,059.16 and 7,761.58 is: 10,709.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,812.54 : 19,059.16 = 7,761.58 : x
  2. Step 2: Convert to fraction form
    13,812.54/19,059.16 = 7,761.58/x
  3. Step 3: Cross multiply
    13,812.54x = 19,059.16 × 7,761.58
  4. Step 4: Simplify right side
    13,812.54x = 147,929,195.07
  5. Step 5: Solve for x
    x = 147,929,195.07/13,812.54
  6. Step 6: Final answer
    x = 10,709.77

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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.