Home / 18,515.43-25,559.73-11,810.25

Finding the Fourth Proportional to 18,515.43, 25,559.73 and 11,810.25

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Solution

The fourth proportional to 18,515.43, 25,559.73 and 11,810.25 is: 16,303.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,515.43 : 25,559.73 = 11,810.25 : x
  2. Step 2: Convert to fraction form
    18,515.43/25,559.73 = 11,810.25/x
  3. Step 3: Cross multiply
    18,515.43x = 25,559.73 × 11,810.25
  4. Step 4: Simplify right side
    18,515.43x = 301,866,801.23
  5. Step 5: Solve for x
    x = 301,866,801.23/18,515.43
  6. Step 6: Final answer
    x = 16,303.53

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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.