Home / 14,042.40-21,001.63-12,493.28

Finding the Fourth Proportional to 14,042.40, 21,001.63 and 12,493.28

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Solution

The fourth proportional to 14,042.40, 21,001.63 and 12,493.28 is: 18,684.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,042.40 : 21,001.63 = 12,493.28 : x
  2. Step 2: Convert to fraction form
    14,042.40/21,001.63 = 12,493.28/x
  3. Step 3: Cross multiply
    14,042.40x = 21,001.63 × 12,493.28
  4. Step 4: Simplify right side
    14,042.40x = 262,379,244.05
  5. Step 5: Solve for x
    x = 262,379,244.05/14,042.40
  6. Step 6: Final answer
    x = 18,684.79

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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.