Home / 13,096.48-18,073.60-7,128.64

Finding the Fourth Proportional to 13,096.48, 18,073.60 and 7,128.64

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Solution

The fourth proportional to 13,096.48, 18,073.60 and 7,128.64 is: 9,837.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,096.48 : 18,073.60 = 7,128.64 : x
  2. Step 2: Convert to fraction form
    13,096.48/18,073.60 = 7,128.64/x
  3. Step 3: Cross multiply
    13,096.48x = 18,073.60 × 7,128.64
  4. Step 4: Simplify right side
    13,096.48x = 128,840,187.90
  5. Step 5: Solve for x
    x = 128,840,187.90/13,096.48
  6. Step 6: Final answer
    x = 9,837.77

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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.