Home / 14,179.96-21,253.58-12,539.72

Finding the Fourth Proportional to 14,179.96, 21,253.58 and 12,539.72

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Solution

The fourth proportional to 14,179.96, 21,253.58 and 12,539.72 is: 18,795.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,179.96 : 21,253.58 = 12,539.72 : x
  2. Step 2: Convert to fraction form
    14,179.96/21,253.58 = 12,539.72/x
  3. Step 3: Cross multiply
    14,179.96x = 21,253.58 × 12,539.72
  4. Step 4: Simplify right side
    14,179.96x = 266,513,942.20
  5. Step 5: Solve for x
    x = 266,513,942.20/14,179.96
  6. Step 6: Final answer
    x = 18,795.11

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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.