Home / 13,859.52-19,125.90-7,571.76

Finding the Fourth Proportional to 13,859.52, 19,125.90 and 7,571.76

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Solution

The fourth proportional to 13,859.52, 19,125.90 and 7,571.76 is: 10,448.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,859.52 : 19,125.90 = 7,571.76 : x
  2. Step 2: Convert to fraction form
    13,859.52/19,125.90 = 7,571.76/x
  3. Step 3: Cross multiply
    13,859.52x = 19,125.90 × 7,571.76
  4. Step 4: Simplify right side
    13,859.52x = 144,816,724.58
  5. Step 5: Solve for x
    x = 144,816,724.58/13,859.52
  6. Step 6: Final answer
    x = 10,448.90

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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.