Home / 13,833.90-20,748.62-3,970.94

Finding the Fourth Proportional to 13,833.90, 20,748.62 and 3,970.94

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Solution

The fourth proportional to 13,833.90, 20,748.62 and 3,970.94 is: 5,955.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,833.90 : 20,748.62 = 3,970.94 : x
  2. Step 2: Convert to fraction form
    13,833.90/20,748.62 = 3,970.94/x
  3. Step 3: Cross multiply
    13,833.90x = 20,748.62 × 3,970.94
  4. Step 4: Simplify right side
    13,833.90x = 82,391,431.29
  5. Step 5: Solve for x
    x = 82,391,431.29/13,833.90
  6. Step 6: Final answer
    x = 5,955.76

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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.