Home / 13,341.66-20,013.50-3,980.94

Finding the Fourth Proportional to 13,341.66, 20,013.50 and 3,980.94

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Solution

The fourth proportional to 13,341.66, 20,013.50 and 3,980.94 is: 5,971.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,341.66 : 20,013.50 = 3,980.94 : x
  2. Step 2: Convert to fraction form
    13,341.66/20,013.50 = 3,980.94/x
  3. Step 3: Cross multiply
    13,341.66x = 20,013.50 × 3,980.94
  4. Step 4: Simplify right side
    13,341.66x = 79,672,542.69
  5. Step 5: Solve for x
    x = 79,672,542.69/13,341.66
  6. Step 6: Final answer
    x = 5,971.71

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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.