Home / 13,415.36-18,512.27-7,446.56

Finding the Fourth Proportional to 13,415.36, 18,512.27 and 7,446.56

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Solution

The fourth proportional to 13,415.36, 18,512.27 and 7,446.56 is: 10,275.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,415.36 : 18,512.27 = 7,446.56 : x
  2. Step 2: Convert to fraction form
    13,415.36/18,512.27 = 7,446.56/x
  3. Step 3: Cross multiply
    13,415.36x = 18,512.27 × 7,446.56
  4. Step 4: Simplify right side
    13,415.36x = 137,852,664.39
  5. Step 5: Solve for x
    x = 137,852,664.39/13,415.36
  6. Step 6: Final answer
    x = 10,275.74

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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.