Home / 13,150.44-19,720.80-5,355

Finding the Fourth Proportional to 13,150.44, 19,720.80 and 5,355

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Solution

The fourth proportional to 13,150.44, 19,720.80 and 5,355 is: 8,030.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,150.44 : 19,720.80 = 5,355 : x
  2. Step 2: Convert to fraction form
    13,150.44/19,720.80 = 5,355/x
  3. Step 3: Cross multiply
    13,150.44x = 19,720.80 × 5,355
  4. Step 4: Simplify right side
    13,150.44x = 105,604,884
  5. Step 5: Solve for x
    x = 105,604,884/13,150.44
  6. Step 6: Final answer
    x = 8,030.52

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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.