Home / 14,690.20-21,992.10-12,962.20

Finding the Fourth Proportional to 14,690.20, 21,992.10 and 12,962.20

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Solution

The fourth proportional to 14,690.20, 21,992.10 and 12,962.20 is: 19,405.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,690.20 : 21,992.10 = 12,962.20 : x
  2. Step 2: Convert to fraction form
    14,690.20/21,992.10 = 12,962.20/x
  3. Step 3: Cross multiply
    14,690.20x = 21,992.10 × 12,962.20
  4. Step 4: Simplify right side
    14,690.20x = 285,065,998.62
  5. Step 5: Solve for x
    x = 285,065,998.62/14,690.20
  6. Step 6: Final answer
    x = 19,405.18

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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.