Home / 18,283.89-25,231.77-9,900.39

Finding the Fourth Proportional to 18,283.89, 25,231.77 and 9,900.39

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Solution

The fourth proportional to 18,283.89, 25,231.77 and 9,900.39 is: 13,662.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,283.89 : 25,231.77 = 9,900.39 : x
  2. Step 2: Convert to fraction form
    18,283.89/25,231.77 = 9,900.39/x
  3. Step 3: Cross multiply
    18,283.89x = 25,231.77 × 9,900.39
  4. Step 4: Simplify right side
    18,283.89x = 249,804,458.01
  5. Step 5: Solve for x
    x = 249,804,458.01/18,283.89
  6. Step 6: Final answer
    x = 13,662.54

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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.