Home / 13,859.30-19,125.86-7,571.68

Finding the Fourth Proportional to 13,859.30, 19,125.86 and 7,571.68

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Solution

The fourth proportional to 13,859.30, 19,125.86 and 7,571.68 is: 10,448.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,859.30 : 19,125.86 = 7,571.68 : x
  2. Step 2: Convert to fraction form
    13,859.30/19,125.86 = 7,571.68/x
  3. Step 3: Cross multiply
    13,859.30x = 19,125.86 × 7,571.68
  4. Step 4: Simplify right side
    13,859.30x = 144,814,805.97
  5. Step 5: Solve for x
    x = 144,814,805.97/13,859.30
  6. Step 6: Final answer
    x = 10,448.92

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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.