Home / 13,168.96-18,174.74-7,581.04

Finding the Fourth Proportional to 13,168.96, 18,174.74 and 7,581.04

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Solution

The fourth proportional to 13,168.96, 18,174.74 and 7,581.04 is: 10,462.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,168.96 : 18,174.74 = 7,581.04 : x
  2. Step 2: Convert to fraction form
    13,168.96/18,174.74 = 7,581.04/x
  3. Step 3: Cross multiply
    13,168.96x = 18,174.74 × 7,581.04
  4. Step 4: Simplify right side
    13,168.96x = 137,783,430.93
  5. Step 5: Solve for x
    x = 137,783,430.93/13,168.96
  6. Step 6: Final answer
    x = 10,462.74

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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.