Home / 13,570.94-18,721.33-11,184.68

Finding the Fourth Proportional to 13,570.94, 18,721.33 and 11,184.68

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Solution

The fourth proportional to 13,570.94, 18,721.33 and 11,184.68 is: 15,429.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,570.94 : 18,721.33 = 11,184.68 : x
  2. Step 2: Convert to fraction form
    13,570.94/18,721.33 = 11,184.68/x
  3. Step 3: Cross multiply
    13,570.94x = 18,721.33 × 11,184.68
  4. Step 4: Simplify right side
    13,570.94x = 209,392,104.07
  5. Step 5: Solve for x
    x = 209,392,104.07/13,570.94
  6. Step 6: Final answer
    x = 15,429.44

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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.