Home / 12,720.24-19,073.88-8,566.56

Finding the Fourth Proportional to 12,720.24, 19,073.88 and 8,566.56

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Solution

The fourth proportional to 12,720.24, 19,073.88 and 8,566.56 is: 12,845.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,720.24 : 19,073.88 = 8,566.56 : x
  2. Step 2: Convert to fraction form
    12,720.24/19,073.88 = 8,566.56/x
  3. Step 3: Cross multiply
    12,720.24x = 19,073.88 × 8,566.56
  4. Step 4: Simplify right side
    12,720.24x = 163,397,537.45
  5. Step 5: Solve for x
    x = 163,397,537.45/12,720.24
  6. Step 6: Final answer
    x = 12,845.48

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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.