Home / 13,726.48-20,560.56-7,868.56

Finding the Fourth Proportional to 13,726.48, 20,560.56 and 7,868.56

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Solution

The fourth proportional to 13,726.48, 20,560.56 and 7,868.56 is: 11,786.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,726.48 : 20,560.56 = 7,868.56 : x
  2. Step 2: Convert to fraction form
    13,726.48/20,560.56 = 7,868.56/x
  3. Step 3: Cross multiply
    13,726.48x = 20,560.56 × 7,868.56
  4. Step 4: Simplify right side
    13,726.48x = 161,781,999.99
  5. Step 5: Solve for x
    x = 161,781,999.99/13,726.48
  6. Step 6: Final answer
    x = 11,786.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.