Home / 13,160.58-19,744.50-7,321.28

Finding the Fourth Proportional to 13,160.58, 19,744.50 and 7,321.28

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Solution

The fourth proportional to 13,160.58, 19,744.50 and 7,321.28 is: 10,983.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,160.58 : 19,744.50 = 7,321.28 : x
  2. Step 2: Convert to fraction form
    13,160.58/19,744.50 = 7,321.28/x
  3. Step 3: Cross multiply
    13,160.58x = 19,744.50 × 7,321.28
  4. Step 4: Simplify right side
    13,160.58x = 144,555,012.96
  5. Step 5: Solve for x
    x = 144,555,012.96/13,160.58
  6. Step 6: Final answer
    x = 10,983.94

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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.