Home / 14,371.56-21,554.88-3,980.88

Finding the Fourth Proportional to 14,371.56, 21,554.88 and 3,980.88

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Solution

The fourth proportional to 14,371.56, 21,554.88 and 3,980.88 is: 5,970.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,371.56 : 21,554.88 = 3,980.88 : x
  2. Step 2: Convert to fraction form
    14,371.56/21,554.88 = 3,980.88/x
  3. Step 3: Cross multiply
    14,371.56x = 21,554.88 × 3,980.88
  4. Step 4: Simplify right side
    14,371.56x = 85,807,390.69
  5. Step 5: Solve for x
    x = 85,807,390.69/14,371.56
  6. Step 6: Final answer
    x = 5,970.64

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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.