Home / 14,178.96-21,252.08-12,538.72

Finding the Fourth Proportional to 14,178.96, 21,252.08 and 12,538.72

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Solution

The fourth proportional to 14,178.96, 21,252.08 and 12,538.72 is: 18,793.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,178.96 : 21,252.08 = 12,538.72 : x
  2. Step 2: Convert to fraction form
    14,178.96/21,252.08 = 12,538.72/x
  3. Step 3: Cross multiply
    14,178.96x = 21,252.08 × 12,538.72
  4. Step 4: Simplify right side
    14,178.96x = 266,473,880.54
  5. Step 5: Solve for x
    x = 266,473,880.54/14,178.96
  6. Step 6: Final answer
    x = 18,793.61

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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.