Home / 18,491.25-25,518.33-10,107.75

Finding the Fourth Proportional to 18,491.25, 25,518.33 and 10,107.75

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Solution

The fourth proportional to 18,491.25, 25,518.33 and 10,107.75 is: 13,948.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,491.25 : 25,518.33 = 10,107.75 : x
  2. Step 2: Convert to fraction form
    18,491.25/25,518.33 = 10,107.75/x
  3. Step 3: Cross multiply
    18,491.25x = 25,518.33 × 10,107.75
  4. Step 4: Simplify right side
    18,491.25x = 257,932,900.06
  5. Step 5: Solve for x
    x = 257,932,900.06/18,491.25
  6. Step 6: Final answer
    x = 13,948.92

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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.