Home / 12,917.76-19,374.42-3,555.70

Finding the Fourth Proportional to 12,917.76, 19,374.42 and 3,555.70

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Solution

The fourth proportional to 12,917.76, 19,374.42 and 3,555.70 is: 5,332.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,917.76 : 19,374.42 = 3,555.70 : x
  2. Step 2: Convert to fraction form
    12,917.76/19,374.42 = 3,555.70/x
  3. Step 3: Cross multiply
    12,917.76x = 19,374.42 × 3,555.70
  4. Step 4: Simplify right side
    12,917.76x = 68,889,590.09
  5. Step 5: Solve for x
    x = 68,889,590.09/12,917.76
  6. Step 6: Final answer
    x = 5,332.94

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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.