Home / 13,763.96-20,637.62-7,515.28

Finding the Fourth Proportional to 13,763.96, 20,637.62 and 7,515.28

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Solution

The fourth proportional to 13,763.96, 20,637.62 and 7,515.28 is: 11,268.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,763.96 : 20,637.62 = 7,515.28 : x
  2. Step 2: Convert to fraction form
    13,763.96/20,637.62 = 7,515.28/x
  3. Step 3: Cross multiply
    13,763.96x = 20,637.62 × 7,515.28
  4. Step 4: Simplify right side
    13,763.96x = 155,097,509.24
  5. Step 5: Solve for x
    x = 155,097,509.24/13,763.96
  6. Step 6: Final answer
    x = 11,268.38

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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.