Home / 13,102.96-18,082.19-7,134.64

Finding the Fourth Proportional to 13,102.96, 18,082.19 and 7,134.64

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Solution

The fourth proportional to 13,102.96, 18,082.19 and 7,134.64 is: 9,845.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,102.96 : 18,082.19 = 7,134.64 : x
  2. Step 2: Convert to fraction form
    13,102.96/18,082.19 = 7,134.64/x
  3. Step 3: Cross multiply
    13,102.96x = 18,082.19 × 7,134.64
  4. Step 4: Simplify right side
    13,102.96x = 129,009,916.06
  5. Step 5: Solve for x
    x = 129,009,916.06/13,102.96
  6. Step 6: Final answer
    x = 9,845.86

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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.