Home / 13,851.09-19,243.55-13,685.02

Finding the Fourth Proportional to 13,851.09, 19,243.55 and 13,685.02

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Solution

The fourth proportional to 13,851.09, 19,243.55 and 13,685.02 is: 19,012.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,851.09 : 19,243.55 = 13,685.02 : x
  2. Step 2: Convert to fraction form
    13,851.09/19,243.55 = 13,685.02/x
  3. Step 3: Cross multiply
    13,851.09x = 19,243.55 × 13,685.02
  4. Step 4: Simplify right side
    13,851.09x = 263,348,331.48
  5. Step 5: Solve for x
    x = 263,348,331.48/13,851.09
  6. Step 6: Final answer
    x = 19,012.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.