Home / 14,216.40-21,324.60-12,855.60

Finding the Fourth Proportional to 14,216.40, 21,324.60 and 12,855.60

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Solution

The fourth proportional to 14,216.40, 21,324.60 and 12,855.60 is: 19,283.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,216.40 : 21,324.60 = 12,855.60 : x
  2. Step 2: Convert to fraction form
    14,216.40/21,324.60 = 12,855.60/x
  3. Step 3: Cross multiply
    14,216.40x = 21,324.60 × 12,855.60
  4. Step 4: Simplify right side
    14,216.40x = 274,140,527.76
  5. Step 5: Solve for x
    x = 274,140,527.76/14,216.40
  6. Step 6: Final answer
    x = 19,283.40

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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.