Home / 18,302.36-25,256.58-9,918.68

Finding the Fourth Proportional to 18,302.36, 25,256.58 and 9,918.68

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Solution

The fourth proportional to 18,302.36, 25,256.58 and 9,918.68 is: 13,687.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,302.36 : 25,256.58 = 9,918.68 : x
  2. Step 2: Convert to fraction form
    18,302.36/25,256.58 = 9,918.68/x
  3. Step 3: Cross multiply
    18,302.36x = 25,256.58 × 9,918.68
  4. Step 4: Simplify right side
    18,302.36x = 250,511,934.91
  5. Step 5: Solve for x
    x = 250,511,934.91/18,302.36
  6. Step 6: Final answer
    x = 13,687.41

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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.