Home / 11,857.40-17,788.38-5,283.57

Finding the Fourth Proportional to 11,857.40, 17,788.38 and 5,283.57

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Solution

The fourth proportional to 11,857.40, 17,788.38 and 5,283.57 is: 7,926.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,857.40 : 17,788.38 = 5,283.57 : x
  2. Step 2: Convert to fraction form
    11,857.40/17,788.38 = 5,283.57/x
  3. Step 3: Cross multiply
    11,857.40x = 17,788.38 × 5,283.57
  4. Step 4: Simplify right side
    11,857.40x = 93,986,106.45
  5. Step 5: Solve for x
    x = 93,986,106.45/11,857.40
  6. Step 6: Final answer
    x = 7,926.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.