Home / 14,242.12-21,339.42-12,609.16

Finding the Fourth Proportional to 14,242.12, 21,339.42 and 12,609.16

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Solution

The fourth proportional to 14,242.12, 21,339.42 and 12,609.16 is: 18,892.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,242.12 : 21,339.42 = 12,609.16 : x
  2. Step 2: Convert to fraction form
    14,242.12/21,339.42 = 12,609.16/x
  3. Step 3: Cross multiply
    14,242.12x = 21,339.42 × 12,609.16
  4. Step 4: Simplify right side
    14,242.12x = 269,072,161.09
  5. Step 5: Solve for x
    x = 269,072,161.09/14,242.12
  6. Step 6: Final answer
    x = 18,892.70

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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.