Home / 13,522.07-18,661.49-9,953.36

Finding the Fourth Proportional to 13,522.07, 18,661.49 and 9,953.36

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Solution

The fourth proportional to 13,522.07, 18,661.49 and 9,953.36 is: 13,736.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,522.07 : 18,661.49 = 9,953.36 : x
  2. Step 2: Convert to fraction form
    13,522.07/18,661.49 = 9,953.36/x
  3. Step 3: Cross multiply
    13,522.07x = 18,661.49 × 9,953.36
  4. Step 4: Simplify right side
    13,522.07x = 185,744,385.03
  5. Step 5: Solve for x
    x = 185,744,385.03/13,522.07
  6. Step 6: Final answer
    x = 13,736.39

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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.