Home / 15,527.85-21,427.97-8,628.99

Finding the Fourth Proportional to 15,527.85, 21,427.97 and 8,628.99

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Solution

The fourth proportional to 15,527.85, 21,427.97 and 8,628.99 is: 11,907.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,527.85 : 21,427.97 = 8,628.99 : x
  2. Step 2: Convert to fraction form
    15,527.85/21,427.97 = 8,628.99/x
  3. Step 3: Cross multiply
    15,527.85x = 21,427.97 × 8,628.99
  4. Step 4: Simplify right side
    15,527.85x = 184,901,745.44
  5. Step 5: Solve for x
    x = 184,901,745.44/15,527.85
  6. Step 6: Final answer
    x = 11,907.75

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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.