Home / 13,119.68-19,592.56-11,529.92

Finding the Fourth Proportional to 13,119.68, 19,592.56 and 11,529.92

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Solution

The fourth proportional to 13,119.68, 19,592.56 and 11,529.92 is: 17,218.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,119.68 : 19,592.56 = 11,529.92 : x
  2. Step 2: Convert to fraction form
    13,119.68/19,592.56 = 11,529.92/x
  3. Step 3: Cross multiply
    13,119.68x = 19,592.56 × 11,529.92
  4. Step 4: Simplify right side
    13,119.68x = 225,900,649.40
  5. Step 5: Solve for x
    x = 225,900,649.40/13,119.68
  6. Step 6: Final answer
    x = 17,218.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.