Home / 14,028.90-21,000.15-12,473.70

Finding the Fourth Proportional to 14,028.90, 21,000.15 and 12,473.70

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Solution

The fourth proportional to 14,028.90, 21,000.15 and 12,473.70 is: 18,672.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,028.90 : 21,000.15 = 12,473.70 : x
  2. Step 2: Convert to fraction form
    14,028.90/21,000.15 = 12,473.70/x
  3. Step 3: Cross multiply
    14,028.90x = 21,000.15 × 12,473.70
  4. Step 4: Simplify right side
    14,028.90x = 261,949,571.06
  5. Step 5: Solve for x
    x = 261,949,571.06/14,028.90
  6. Step 6: Final answer
    x = 18,672.14

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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.