Home / 13,371.37-18,453.86-7,706.32

Finding the Fourth Proportional to 13,371.37, 18,453.86 and 7,706.32

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Solution

The fourth proportional to 13,371.37, 18,453.86 and 7,706.32 is: 10,635.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,371.37 : 18,453.86 = 7,706.32 : x
  2. Step 2: Convert to fraction form
    13,371.37/18,453.86 = 7,706.32/x
  3. Step 3: Cross multiply
    13,371.37x = 18,453.86 × 7,706.32
  4. Step 4: Simplify right side
    13,371.37x = 142,211,350.40
  5. Step 5: Solve for x
    x = 142,211,350.40/13,371.37
  6. Step 6: Final answer
    x = 10,635.51

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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.