Home / 13,372.37-18,455.24-7,707.32

Finding the Fourth Proportional to 13,372.37, 18,455.24 and 7,707.32

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Solution

The fourth proportional to 13,372.37, 18,455.24 and 7,707.32 is: 10,636.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,372.37 : 18,455.24 = 7,707.32 : x
  2. Step 2: Convert to fraction form
    13,372.37/18,455.24 = 7,707.32/x
  3. Step 3: Cross multiply
    13,372.37x = 18,455.24 × 7,707.32
  4. Step 4: Simplify right side
    13,372.37x = 142,240,440.36
  5. Step 5: Solve for x
    x = 142,240,440.36/13,372.37
  6. Step 6: Final answer
    x = 10,636.89

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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.