Home / 13,096.74-18,073.44-7,128.45

Finding the Fourth Proportional to 13,096.74, 18,073.44 and 7,128.45

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Solution

The fourth proportional to 13,096.74, 18,073.44 and 7,128.45 is: 9,837.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,096.74 : 18,073.44 = 7,128.45 : x
  2. Step 2: Convert to fraction form
    13,096.74/18,073.44 = 7,128.45/x
  3. Step 3: Cross multiply
    13,096.74x = 18,073.44 × 7,128.45
  4. Step 4: Simplify right side
    13,096.74x = 128,835,613.37
  5. Step 5: Solve for x
    x = 128,835,613.37/13,096.74
  6. Step 6: Final answer
    x = 9,837.23

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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.