Home / 13,786.47-20,679.71-5,022.05

Finding the Fourth Proportional to 13,786.47, 20,679.71 and 5,022.05

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Solution

The fourth proportional to 13,786.47, 20,679.71 and 5,022.05 is: 7,533.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,786.47 : 20,679.71 = 5,022.05 : x
  2. Step 2: Convert to fraction form
    13,786.47/20,679.71 = 5,022.05/x
  3. Step 3: Cross multiply
    13,786.47x = 20,679.71 × 5,022.05
  4. Step 4: Simplify right side
    13,786.47x = 103,854,409.10
  5. Step 5: Solve for x
    x = 103,854,409.10/13,786.47
  6. Step 6: Final answer
    x = 7,533.07

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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.