Home / 14,165.44-21,230.40-8,972.80

Finding the Fourth Proportional to 14,165.44, 21,230.40 and 8,972.80

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Solution

The fourth proportional to 14,165.44, 21,230.40 and 8,972.80 is: 13,447.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,165.44 : 21,230.40 = 8,972.80 : x
  2. Step 2: Convert to fraction form
    14,165.44/21,230.40 = 8,972.80/x
  3. Step 3: Cross multiply
    14,165.44x = 21,230.40 × 8,972.80
  4. Step 4: Simplify right side
    14,165.44x = 190,496,133.12
  5. Step 5: Solve for x
    x = 190,496,133.12/14,165.44
  6. Step 6: Final answer
    x = 13,447.95

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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.