Home / 19,131.94-28,697.64-9,272.08

Finding the Fourth Proportional to 19,131.94, 28,697.64 and 9,272.08

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Solution

The fourth proportional to 19,131.94, 28,697.64 and 9,272.08 is: 13,907.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,131.94 : 28,697.64 = 9,272.08 : x
  2. Step 2: Convert to fraction form
    19,131.94/28,697.64 = 9,272.08/x
  3. Step 3: Cross multiply
    19,131.94x = 28,697.64 × 9,272.08
  4. Step 4: Simplify right side
    19,131.94x = 266,086,813.89
  5. Step 5: Solve for x
    x = 266,086,813.89/19,131.94
  6. Step 6: Final answer
    x = 13,907.99

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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.