Home / 14,305.92-21,450.87-7,281.60

Finding the Fourth Proportional to 14,305.92, 21,450.87 and 7,281.60

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Solution

The fourth proportional to 14,305.92, 21,450.87 and 7,281.60 is: 10,918.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,305.92 : 21,450.87 = 7,281.60 : x
  2. Step 2: Convert to fraction form
    14,305.92/21,450.87 = 7,281.60/x
  3. Step 3: Cross multiply
    14,305.92x = 21,450.87 × 7,281.60
  4. Step 4: Simplify right side
    14,305.92x = 156,196,654.99
  5. Step 5: Solve for x
    x = 156,196,654.99/14,305.92
  6. Step 6: Final answer
    x = 10,918.32

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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.