Home / 13,945.14-19,243.71-7,657.11

Finding the Fourth Proportional to 13,945.14, 19,243.71 and 7,657.11

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Solution

The fourth proportional to 13,945.14, 19,243.71 and 7,657.11 is: 10,566.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,945.14 : 19,243.71 = 7,657.11 : x
  2. Step 2: Convert to fraction form
    13,945.14/19,243.71 = 7,657.11/x
  3. Step 3: Cross multiply
    13,945.14x = 19,243.71 × 7,657.11
  4. Step 4: Simplify right side
    13,945.14x = 147,351,204.28
  5. Step 5: Solve for x
    x = 147,351,204.28/13,945.14
  6. Step 6: Final answer
    x = 10,566.49

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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.