Home / 13,911.56-19,197.54-7,943.06

Finding the Fourth Proportional to 13,911.56, 19,197.54 and 7,943.06

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Solution

The fourth proportional to 13,911.56, 19,197.54 and 7,943.06 is: 10,961.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.56 : 19,197.54 = 7,943.06 : x
  2. Step 2: Convert to fraction form
    13,911.56/19,197.54 = 7,943.06/x
  3. Step 3: Cross multiply
    13,911.56x = 19,197.54 × 7,943.06
  4. Step 4: Simplify right side
    13,911.56x = 152,487,212.07
  5. Step 5: Solve for x
    x = 152,487,212.07/13,911.56
  6. Step 6: Final answer
    x = 10,961.19

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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.