Home / 12,999.21-19,500.55-4,563.71

Finding the Fourth Proportional to 12,999.21, 19,500.55 and 4,563.71

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Solution

The fourth proportional to 12,999.21, 19,500.55 and 4,563.71 is: 6,846.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,999.21 : 19,500.55 = 4,563.71 : x
  2. Step 2: Convert to fraction form
    12,999.21/19,500.55 = 4,563.71/x
  3. Step 3: Cross multiply
    12,999.21x = 19,500.55 × 4,563.71
  4. Step 4: Simplify right side
    12,999.21x = 88,994,855.04
  5. Step 5: Solve for x
    x = 88,994,855.04/12,999.21
  6. Step 6: Final answer
    x = 6,846.17

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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.