Home / 13,256.81-18,293.93-7,288.44

Finding the Fourth Proportional to 13,256.81, 18,293.93 and 7,288.44

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Solution

The fourth proportional to 13,256.81, 18,293.93 and 7,288.44 is: 10,057.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,256.81 : 18,293.93 = 7,288.44 : x
  2. Step 2: Convert to fraction form
    13,256.81/18,293.93 = 7,288.44/x
  3. Step 3: Cross multiply
    13,256.81x = 18,293.93 × 7,288.44
  4. Step 4: Simplify right side
    13,256.81x = 133,334,119.70
  5. Step 5: Solve for x
    x = 133,334,119.70/13,256.81
  6. Step 6: Final answer
    x = 10,057.78

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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.