Home / 14,042.55-21,053.42-6,638.36

Finding the Fourth Proportional to 14,042.55, 21,053.42 and 6,638.36

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Solution

The fourth proportional to 14,042.55, 21,053.42 and 6,638.36 is: 9,952.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,042.55 : 21,053.42 = 6,638.36 : x
  2. Step 2: Convert to fraction form
    14,042.55/21,053.42 = 6,638.36/x
  3. Step 3: Cross multiply
    14,042.55x = 21,053.42 × 6,638.36
  4. Step 4: Simplify right side
    14,042.55x = 139,760,171.47
  5. Step 5: Solve for x
    x = 139,760,171.47/14,042.55
  6. Step 6: Final answer
    x = 9,952.62

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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.