Home / 13,160.45-19,744.34-7,321.16

Finding the Fourth Proportional to 13,160.45, 19,744.34 and 7,321.16

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Solution

The fourth proportional to 13,160.45, 19,744.34 and 7,321.16 is: 10,983.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,160.45 : 19,744.34 = 7,321.16 : x
  2. Step 2: Convert to fraction form
    13,160.45/19,744.34 = 7,321.16/x
  3. Step 3: Cross multiply
    13,160.45x = 19,744.34 × 7,321.16
  4. Step 4: Simplify right side
    13,160.45x = 144,551,336.91
  5. Step 5: Solve for x
    x = 144,551,336.91/13,160.45
  6. Step 6: Final answer
    x = 10,983.77

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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.