Home / 14,169.12-21,257.50-12,619.76

Finding the Fourth Proportional to 14,169.12, 21,257.50 and 12,619.76

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Solution

The fourth proportional to 14,169.12, 21,257.50 and 12,619.76 is: 18,933.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,169.12 : 21,257.50 = 12,619.76 : x
  2. Step 2: Convert to fraction form
    14,169.12/21,257.50 = 12,619.76/x
  3. Step 3: Cross multiply
    14,169.12x = 21,257.50 × 12,619.76
  4. Step 4: Simplify right side
    14,169.12x = 268,264,548.20
  5. Step 5: Solve for x
    x = 268,264,548.20/14,169.12
  6. Step 6: Final answer
    x = 18,933.04

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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.