Home / 14,215.06-21,322.70-5,447.88

Finding the Fourth Proportional to 14,215.06, 21,322.70 and 5,447.88

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Solution

The fourth proportional to 14,215.06, 21,322.70 and 5,447.88 is: 8,171.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,215.06 : 21,322.70 = 5,447.88 : x
  2. Step 2: Convert to fraction form
    14,215.06/21,322.70 = 5,447.88/x
  3. Step 3: Cross multiply
    14,215.06x = 21,322.70 × 5,447.88
  4. Step 4: Simplify right side
    14,215.06x = 116,163,510.88
  5. Step 5: Solve for x
    x = 116,163,510.88/14,215.06
  6. Step 6: Final answer
    x = 8,171.86

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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.