Home / 13,133.75-18,036.47-11,245.43

Finding the Fourth Proportional to 13,133.75, 18,036.47 and 11,245.43

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Solution

The fourth proportional to 13,133.75, 18,036.47 and 11,245.43 is: 15,443.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,133.75 : 18,036.47 = 11,245.43 : x
  2. Step 2: Convert to fraction form
    13,133.75/18,036.47 = 11,245.43/x
  3. Step 3: Cross multiply
    13,133.75x = 18,036.47 × 11,245.43
  4. Step 4: Simplify right side
    13,133.75x = 202,827,934.04
  5. Step 5: Solve for x
    x = 202,827,934.04/13,133.75
  6. Step 6: Final answer
    x = 15,443.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.