Home / 13,096.43-18,073.26-7,128.11

Finding the Fourth Proportional to 13,096.43, 18,073.26 and 7,128.11

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Solution

The fourth proportional to 13,096.43, 18,073.26 and 7,128.11 is: 9,836.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,096.43 : 18,073.26 = 7,128.11 : x
  2. Step 2: Convert to fraction form
    13,096.43/18,073.26 = 7,128.11/x
  3. Step 3: Cross multiply
    13,096.43x = 18,073.26 × 7,128.11
  4. Step 4: Simplify right side
    13,096.43x = 128,828,185.34
  5. Step 5: Solve for x
    x = 128,828,185.34/13,096.43
  6. Step 6: Final answer
    x = 9,836.89

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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.