Home / 13,436.88-18,542.75-7,469.07

Finding the Fourth Proportional to 13,436.88, 18,542.75 and 7,469.07

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Solution

The fourth proportional to 13,436.88, 18,542.75 and 7,469.07 is: 10,307.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,436.88 : 18,542.75 = 7,469.07 : x
  2. Step 2: Convert to fraction form
    13,436.88/18,542.75 = 7,469.07/x
  3. Step 3: Cross multiply
    13,436.88x = 18,542.75 × 7,469.07
  4. Step 4: Simplify right side
    13,436.88x = 138,497,097.74
  5. Step 5: Solve for x
    x = 138,497,097.74/13,436.88
  6. Step 6: Final answer
    x = 10,307.24

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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.