Home / 13,141.44-18,132.48-7,551.36

Finding the Fourth Proportional to 13,141.44, 18,132.48 and 7,551.36

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Solution

The fourth proportional to 13,141.44, 18,132.48 and 7,551.36 is: 10,419.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,141.44 : 18,132.48 = 7,551.36 : x
  2. Step 2: Convert to fraction form
    13,141.44/18,132.48 = 7,551.36/x
  3. Step 3: Cross multiply
    13,141.44x = 18,132.48 × 7,551.36
  4. Step 4: Simplify right side
    13,141.44x = 136,924,884.17
  5. Step 5: Solve for x
    x = 136,924,884.17/13,141.44
  6. Step 6: Final answer
    x = 10,419.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.