Home / 14,141.40-21,220.20-5,382.60

Finding the Fourth Proportional to 14,141.40, 21,220.20 and 5,382.60

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Solution

The fourth proportional to 14,141.40, 21,220.20 and 5,382.60 is: 8,076.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,141.40 : 21,220.20 = 5,382.60 : x
  2. Step 2: Convert to fraction form
    14,141.40/21,220.20 = 5,382.60/x
  3. Step 3: Cross multiply
    14,141.40x = 21,220.20 × 5,382.60
  4. Step 4: Simplify right side
    14,141.40x = 114,219,848.52
  5. Step 5: Solve for x
    x = 114,219,848.52/14,141.40
  6. Step 6: Final answer
    x = 8,076.98

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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.