Home / 13,825.29-19,076.68-7,775.51

Finding the Fourth Proportional to 13,825.29, 19,076.68 and 7,775.51

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Solution

The fourth proportional to 13,825.29, 19,076.68 and 7,775.51 is: 10,728.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,825.29 : 19,076.68 = 7,775.51 : x
  2. Step 2: Convert to fraction form
    13,825.29/19,076.68 = 7,775.51/x
  3. Step 3: Cross multiply
    13,825.29x = 19,076.68 × 7,775.51
  4. Step 4: Simplify right side
    13,825.29x = 148,330,983.24
  5. Step 5: Solve for x
    x = 148,330,983.24/13,825.29
  6. Step 6: Final answer
    x = 10,728.96

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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.