Home / 14,042.39-21,053.19-6,638.20

Finding the Fourth Proportional to 14,042.39, 21,053.19 and 6,638.20

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Solution

The fourth proportional to 14,042.39, 21,053.19 and 6,638.20 is: 9,952.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,042.39 : 21,053.19 = 6,638.20 : x
  2. Step 2: Convert to fraction form
    14,042.39/21,053.19 = 6,638.20/x
  3. Step 3: Cross multiply
    14,042.39x = 21,053.19 × 6,638.20
  4. Step 4: Simplify right side
    14,042.39x = 139,755,338.49
  5. Step 5: Solve for x
    x = 139,755,338.49/14,042.39
  6. Step 6: Final answer
    x = 9,952.39

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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.