Home / 15,609.95-21,542.32-8,896.64

Finding the Fourth Proportional to 15,609.95, 21,542.32 and 8,896.64

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Solution

The fourth proportional to 15,609.95, 21,542.32 and 8,896.64 is: 12,277.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,609.95 : 21,542.32 = 8,896.64 : x
  2. Step 2: Convert to fraction form
    15,609.95/21,542.32 = 8,896.64/x
  3. Step 3: Cross multiply
    15,609.95x = 21,542.32 × 8,896.64
  4. Step 4: Simplify right side
    15,609.95x = 191,654,169.21
  5. Step 5: Solve for x
    x = 191,654,169.21/15,609.95
  6. Step 6: Final answer
    x = 12,277.69

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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.