Home / 11,321.40-16,948.62-8,412.60

Finding the Fourth Proportional to 11,321.40, 16,948.62 and 8,412.60

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Solution

The fourth proportional to 11,321.40, 16,948.62 and 8,412.60 is: 12,594.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,321.40 : 16,948.62 = 8,412.60 : x
  2. Step 2: Convert to fraction form
    11,321.40/16,948.62 = 8,412.60/x
  3. Step 3: Cross multiply
    11,321.40x = 16,948.62 × 8,412.60
  4. Step 4: Simplify right side
    11,321.40x = 142,581,960.61
  5. Step 5: Solve for x
    x = 142,581,960.61/11,321.40
  6. Step 6: Final answer
    x = 12,594.02

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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.