Home / 15,757.36-21,744.72-8,683.63

Finding the Fourth Proportional to 15,757.36, 21,744.72 and 8,683.63

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Solution

The fourth proportional to 15,757.36, 21,744.72 and 8,683.63 is: 11,983.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,757.36 : 21,744.72 = 8,683.63 : x
  2. Step 2: Convert to fraction form
    15,757.36/21,744.72 = 8,683.63/x
  3. Step 3: Cross multiply
    15,757.36x = 21,744.72 × 8,683.63
  4. Step 4: Simplify right side
    15,757.36x = 188,823,048.57
  5. Step 5: Solve for x
    x = 188,823,048.57/15,757.36
  6. Step 6: Final answer
    x = 11,983.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.