Home / 13,860.37-19,127.37-7,572.88

Finding the Fourth Proportional to 13,860.37, 19,127.37 and 7,572.88

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Solution

The fourth proportional to 13,860.37, 19,127.37 and 7,572.88 is: 10,450.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,860.37 : 19,127.37 = 7,572.88 : x
  2. Step 2: Convert to fraction form
    13,860.37/19,127.37 = 7,572.88/x
  3. Step 3: Cross multiply
    13,860.37x = 19,127.37 × 7,572.88
  4. Step 4: Simplify right side
    13,860.37x = 144,849,277.73
  5. Step 5: Solve for x
    x = 144,849,277.73/13,860.37
  6. Step 6: Final answer
    x = 10,450.61

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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.