Home / 13,175.07-18,180.29-7,799.51

Finding the Fourth Proportional to 13,175.07, 18,180.29 and 7,799.51

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Solution

The fourth proportional to 13,175.07, 18,180.29 and 7,799.51 is: 10,762.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,175.07 : 18,180.29 = 7,799.51 : x
  2. Step 2: Convert to fraction form
    13,175.07/18,180.29 = 7,799.51/x
  3. Step 3: Cross multiply
    13,175.07x = 18,180.29 × 7,799.51
  4. Step 4: Simplify right side
    13,175.07x = 141,797,223.76
  5. Step 5: Solve for x
    x = 141,797,223.76/13,175.07
  6. Step 6: Final answer
    x = 10,762.54

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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.