Home / 14,083.40-21,111.90-5,324.20

Finding the Fourth Proportional to 14,083.40, 21,111.90 and 5,324.20

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Solution

The fourth proportional to 14,083.40, 21,111.90 and 5,324.20 is: 7,981.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,083.40 : 21,111.90 = 5,324.20 : x
  2. Step 2: Convert to fraction form
    14,083.40/21,111.90 = 5,324.20/x
  3. Step 3: Cross multiply
    14,083.40x = 21,111.90 × 5,324.20
  4. Step 4: Simplify right side
    14,083.40x = 112,403,977.98
  5. Step 5: Solve for x
    x = 112,403,977.98/14,083.40
  6. Step 6: Final answer
    x = 7,981.31

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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.