Home / 18,136.43-25,028.53-9,960.71

Finding the Fourth Proportional to 18,136.43, 25,028.53 and 9,960.71

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Solution

The fourth proportional to 18,136.43, 25,028.53 and 9,960.71 is: 13,745.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,136.43 : 25,028.53 = 9,960.71 : x
  2. Step 2: Convert to fraction form
    18,136.43/25,028.53 = 9,960.71/x
  3. Step 3: Cross multiply
    18,136.43x = 25,028.53 × 9,960.71
  4. Step 4: Simplify right side
    18,136.43x = 249,301,779.01
  5. Step 5: Solve for x
    x = 249,301,779.01/18,136.43
  6. Step 6: Final answer
    x = 13,745.91

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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.