Home / 13,628.66-18,814.28-8,600.63

Finding the Fourth Proportional to 13,628.66, 18,814.28 and 8,600.63

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Solution

The fourth proportional to 13,628.66, 18,814.28 and 8,600.63 is: 11,873.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,628.66 : 18,814.28 = 8,600.63 : x
  2. Step 2: Convert to fraction form
    13,628.66/18,814.28 = 8,600.63/x
  3. Step 3: Cross multiply
    13,628.66x = 18,814.28 × 8,600.63
  4. Step 4: Simplify right side
    13,628.66x = 161,814,523.92
  5. Step 5: Solve for x
    x = 161,814,523.92/13,628.66
  6. Step 6: Final answer
    x = 11,873.11

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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.