Home / 13,309.29-18,357.61-10,791.51

Finding the Fourth Proportional to 13,309.29, 18,357.61 and 10,791.51

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Solution

The fourth proportional to 13,309.29, 18,357.61 and 10,791.51 is: 14,884.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309.29 : 18,357.61 = 10,791.51 : x
  2. Step 2: Convert to fraction form
    13,309.29/18,357.61 = 10,791.51/x
  3. Step 3: Cross multiply
    13,309.29x = 18,357.61 × 10,791.51
  4. Step 4: Simplify right side
    13,309.29x = 198,106,213.12
  5. Step 5: Solve for x
    x = 198,106,213.12/13,309.29
  6. Step 6: Final answer
    x = 14,884.81

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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.