Home / 13,166.60-19,749.90-8,241.80

Finding the Fourth Proportional to 13,166.60, 19,749.90 and 8,241.80

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Solution

The fourth proportional to 13,166.60, 19,749.90 and 8,241.80 is: 12,362.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,166.60 : 19,749.90 = 8,241.80 : x
  2. Step 2: Convert to fraction form
    13,166.60/19,749.90 = 8,241.80/x
  3. Step 3: Cross multiply
    13,166.60x = 19,749.90 × 8,241.80
  4. Step 4: Simplify right side
    13,166.60x = 162,774,725.82
  5. Step 5: Solve for x
    x = 162,774,725.82/13,166.60
  6. Step 6: Final answer
    x = 12,362.70

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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.