Home / 12,015.96-18,004.90-8,713.59

Finding the Fourth Proportional to 12,015.96, 18,004.90 and 8,713.59

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Solution

The fourth proportional to 12,015.96, 18,004.90 and 8,713.59 is: 13,056.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,015.96 : 18,004.90 = 8,713.59 : x
  2. Step 2: Convert to fraction form
    12,015.96/18,004.90 = 8,713.59/x
  3. Step 3: Cross multiply
    12,015.96x = 18,004.90 × 8,713.59
  4. Step 4: Simplify right side
    12,015.96x = 156,887,316.59
  5. Step 5: Solve for x
    x = 156,887,316.59/12,015.96
  6. Step 6: Final answer
    x = 13,056.58

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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.