Home / 18,383.04-25,383.36-11,313.36

Finding the Fourth Proportional to 18,383.04, 25,383.36 and 11,313.36

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Solution

The fourth proportional to 18,383.04, 25,383.36 and 11,313.36 is: 15,621.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,383.04 : 25,383.36 = 11,313.36 : x
  2. Step 2: Convert to fraction form
    18,383.04/25,383.36 = 11,313.36/x
  3. Step 3: Cross multiply
    18,383.04x = 25,383.36 × 11,313.36
  4. Step 4: Simplify right side
    18,383.04x = 287,171,089.69
  5. Step 5: Solve for x
    x = 287,171,089.69/18,383.04
  6. Step 6: Final answer
    x = 15,621.52

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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.