Home / 13,831-19,087.26-7,862.92

Finding the Fourth Proportional to 13,831, 19,087.26 and 7,862.92

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Solution

The fourth proportional to 13,831, 19,087.26 and 7,862.92 is: 10,851.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,831 : 19,087.26 = 7,862.92 : x
  2. Step 2: Convert to fraction form
    13,831/19,087.26 = 7,862.92/x
  3. Step 3: Cross multiply
    13,831x = 19,087.26 × 7,862.92
  4. Step 4: Simplify right side
    13,831x = 150,081,598.40
  5. Step 5: Solve for x
    x = 150,081,598.40/13,831
  6. Step 6: Final answer
    x = 10,851.10

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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.