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Finding the Fourth Proportional to 12,159.57, 16,780.22 and 6,570.57

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Solution

The fourth proportional to 12,159.57, 16,780.22 and 6,570.57 is: 9,067.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,159.57 : 16,780.22 = 6,570.57 : x
  2. Step 2: Convert to fraction form
    12,159.57/16,780.22 = 6,570.57/x
  3. Step 3: Cross multiply
    12,159.57x = 16,780.22 × 6,570.57
  4. Step 4: Simplify right side
    12,159.57x = 110,255,610.13
  5. Step 5: Solve for x
    x = 110,255,610.13/12,159.57
  6. Step 6: Final answer
    x = 9,067.39

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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.