Home / 14,550.49-21,835.31-7,981.29

Finding the Fourth Proportional to 14,550.49, 21,835.31 and 7,981.29

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Solution

The fourth proportional to 14,550.49, 21,835.31 and 7,981.29 is: 11,977.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,550.49 : 21,835.31 = 7,981.29 : x
  2. Step 2: Convert to fraction form
    14,550.49/21,835.31 = 7,981.29/x
  3. Step 3: Cross multiply
    14,550.49x = 21,835.31 × 7,981.29
  4. Step 4: Simplify right side
    14,550.49x = 174,273,901.44
  5. Step 5: Solve for x
    x = 174,273,901.44/14,550.49
  6. Step 6: Final answer
    x = 11,977.19

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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.