Home / 18,379.07-27,577.71-7,285.51

Finding the Fourth Proportional to 18,379.07, 27,577.71 and 7,285.51

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Solution

The fourth proportional to 18,379.07, 27,577.71 and 7,285.51 is: 10,931.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,379.07 : 27,577.71 = 7,285.51 : x
  2. Step 2: Convert to fraction form
    18,379.07/27,577.71 = 7,285.51/x
  3. Step 3: Cross multiply
    18,379.07x = 27,577.71 × 7,285.51
  4. Step 4: Simplify right side
    18,379.07x = 200,917,681.98
  5. Step 5: Solve for x
    x = 200,917,681.98/18,379.07
  6. Step 6: Final answer
    x = 10,931.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.