Home / 13,635.05-18,818.28-11,393.37

Finding the Fourth Proportional to 13,635.05, 18,818.28 and 11,393.37

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Solution

The fourth proportional to 13,635.05, 18,818.28 and 11,393.37 is: 15,724.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,635.05 : 18,818.28 = 11,393.37 : x
  2. Step 2: Convert to fraction form
    13,635.05/18,818.28 = 11,393.37/x
  3. Step 3: Cross multiply
    13,635.05x = 18,818.28 × 11,393.37
  4. Step 4: Simplify right side
    13,635.05x = 214,403,626.80
  5. Step 5: Solve for x
    x = 214,403,626.80/13,635.05
  6. Step 6: Final answer
    x = 15,724.45

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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.