Home / 12,821.99-19,236.51-4,500.90

Finding the Fourth Proportional to 12,821.99, 19,236.51 and 4,500.90

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Solution

The fourth proportional to 12,821.99, 19,236.51 and 4,500.90 is: 6,752.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,821.99 : 19,236.51 = 4,500.90 : x
  2. Step 2: Convert to fraction form
    12,821.99/19,236.51 = 4,500.90/x
  3. Step 3: Cross multiply
    12,821.99x = 19,236.51 × 4,500.90
  4. Step 4: Simplify right side
    12,821.99x = 86,581,680.00
  5. Step 5: Solve for x
    x = 86,581,680.00/12,821.99
  6. Step 6: Final answer
    x = 6,752.60

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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.