Home / 14,405.20-21,607.80-11,124.70

Finding the Fourth Proportional to 14,405.20, 21,607.80 and 11,124.70

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Solution

The fourth proportional to 14,405.20, 21,607.80 and 11,124.70 is: 16,687.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,405.20 : 21,607.80 = 11,124.70 : x
  2. Step 2: Convert to fraction form
    14,405.20/21,607.80 = 11,124.70/x
  3. Step 3: Cross multiply
    14,405.20x = 21,607.80 × 11,124.70
  4. Step 4: Simplify right side
    14,405.20x = 240,380,292.66
  5. Step 5: Solve for x
    x = 240,380,292.66/14,405.20
  6. Step 6: Final answer
    x = 16,687.05

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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.