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Finding the Fourth Proportional to 13,246.95, 18,281.94 and 7,279.86

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Solution

The fourth proportional to 13,246.95, 18,281.94 and 7,279.86 is: 10,046.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,246.95 : 18,281.94 = 7,279.86 : x
  2. Step 2: Convert to fraction form
    13,246.95/18,281.94 = 7,279.86/x
  3. Step 3: Cross multiply
    13,246.95x = 18,281.94 × 7,279.86
  4. Step 4: Simplify right side
    13,246.95x = 133,089,963.73
  5. Step 5: Solve for x
    x = 133,089,963.73/13,246.95
  6. Step 6: Final answer
    x = 10,046.84

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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.