Home / 12,886.56-19,332.96-9,179.52

Finding the Fourth Proportional to 12,886.56, 19,332.96 and 9,179.52

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Solution

The fourth proportional to 12,886.56, 19,332.96 and 9,179.52 is: 13,771.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,886.56 : 19,332.96 = 9,179.52 : x
  2. Step 2: Convert to fraction form
    12,886.56/19,332.96 = 9,179.52/x
  3. Step 3: Cross multiply
    12,886.56x = 19,332.96 × 9,179.52
  4. Step 4: Simplify right side
    12,886.56x = 177,467,292.98
  5. Step 5: Solve for x
    x = 177,467,292.98/12,886.56
  6. Step 6: Final answer
    x = 13,771.50

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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.