Home / 14,350.57-21,530.41-4,990.21

Finding the Fourth Proportional to 14,350.57, 21,530.41 and 4,990.21

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Solution

The fourth proportional to 14,350.57, 21,530.41 and 4,990.21 is: 7,486.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,350.57 : 21,530.41 = 4,990.21 : x
  2. Step 2: Convert to fraction form
    14,350.57/21,530.41 = 4,990.21/x
  3. Step 3: Cross multiply
    14,350.57x = 21,530.41 × 4,990.21
  4. Step 4: Simplify right side
    14,350.57x = 107,441,200.98
  5. Step 5: Solve for x
    x = 107,441,200.98/14,350.57
  6. Step 6: Final answer
    x = 7,486.90

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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.