Home / 18,817.91-25,969.26-10,860.57

Finding the Fourth Proportional to 18,817.91, 25,969.26 and 10,860.57

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Solution

The fourth proportional to 18,817.91, 25,969.26 and 10,860.57 is: 14,987.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,817.91 : 25,969.26 = 10,860.57 : x
  2. Step 2: Convert to fraction form
    18,817.91/25,969.26 = 10,860.57/x
  3. Step 3: Cross multiply
    18,817.91x = 25,969.26 × 10,860.57
  4. Step 4: Simplify right side
    18,817.91x = 282,040,966.08
  5. Step 5: Solve for x
    x = 282,040,966.08/18,817.91
  6. Step 6: Final answer
    x = 14,987.90

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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.