Home / 14,137.80-21,228.30-9,774.60

Finding the Fourth Proportional to 14,137.80, 21,228.30 and 9,774.60

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Solution

The fourth proportional to 14,137.80, 21,228.30 and 9,774.60 is: 14,676.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,137.80 : 21,228.30 = 9,774.60 : x
  2. Step 2: Convert to fraction form
    14,137.80/21,228.30 = 9,774.60/x
  3. Step 3: Cross multiply
    14,137.80x = 21,228.30 × 9,774.60
  4. Step 4: Simplify right side
    14,137.80x = 207,498,141.18
  5. Step 5: Solve for x
    x = 207,498,141.18/14,137.80
  6. Step 6: Final answer
    x = 14,676.83

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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.