Home / 13,950.09-19,251.13-7,662.47

Finding the Fourth Proportional to 13,950.09, 19,251.13 and 7,662.47

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Solution

The fourth proportional to 13,950.09, 19,251.13 and 7,662.47 is: 10,574.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,950.09 : 19,251.13 = 7,662.47 : x
  2. Step 2: Convert to fraction form
    13,950.09/19,251.13 = 7,662.47/x
  3. Step 3: Cross multiply
    13,950.09x = 19,251.13 × 7,662.47
  4. Step 4: Simplify right side
    13,950.09x = 147,511,191.61
  5. Step 5: Solve for x
    x = 147,511,191.61/13,950.09
  6. Step 6: Final answer
    x = 10,574.21

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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.