Home / 13,989.66-20,983.47-4,628.70

Finding the Fourth Proportional to 13,989.66, 20,983.47 and 4,628.70

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Solution

The fourth proportional to 13,989.66, 20,983.47 and 4,628.70 is: 6,942.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,989.66 : 20,983.47 = 4,628.70 : x
  2. Step 2: Convert to fraction form
    13,989.66/20,983.47 = 4,628.70/x
  3. Step 3: Cross multiply
    13,989.66x = 20,983.47 × 4,628.70
  4. Step 4: Simplify right side
    13,989.66x = 97,126,187.59
  5. Step 5: Solve for x
    x = 97,126,187.59/13,989.66
  6. Step 6: Final answer
    x = 6,942.71

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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.