Home / 13,943.73-19,241.21-7,656.11

Finding the Fourth Proportional to 13,943.73, 19,241.21 and 7,656.11

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Solution

The fourth proportional to 13,943.73, 19,241.21 and 7,656.11 is: 10,564.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.73 : 19,241.21 = 7,656.11 : x
  2. Step 2: Convert to fraction form
    13,943.73/19,241.21 = 7,656.11/x
  3. Step 3: Cross multiply
    13,943.73x = 19,241.21 × 7,656.11
  4. Step 4: Simplify right side
    13,943.73x = 147,312,820.29
  5. Step 5: Solve for x
    x = 147,312,820.29/13,943.73
  6. Step 6: Final answer
    x = 10,564.81

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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.