Home / 12,460.43-18,659.89-9,663.81

Finding the Fourth Proportional to 12,460.43, 18,659.89 and 9,663.81

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Solution

The fourth proportional to 12,460.43, 18,659.89 and 9,663.81 is: 14,471.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,460.43 : 18,659.89 = 9,663.81 : x
  2. Step 2: Convert to fraction form
    12,460.43/18,659.89 = 9,663.81/x
  3. Step 3: Cross multiply
    12,460.43x = 18,659.89 × 9,663.81
  4. Step 4: Simplify right side
    12,460.43x = 180,325,600.87
  5. Step 5: Solve for x
    x = 180,325,600.87/12,460.43
  6. Step 6: Final answer
    x = 14,471.86

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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.