Home / 13,188.24-18,204.38-8,156.32

Finding the Fourth Proportional to 13,188.24, 18,204.38 and 8,156.32

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Solution

The fourth proportional to 13,188.24, 18,204.38 and 8,156.32 is: 11,258.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,188.24 : 18,204.38 = 8,156.32 : x
  2. Step 2: Convert to fraction form
    13,188.24/18,204.38 = 8,156.32/x
  3. Step 3: Cross multiply
    13,188.24x = 18,204.38 × 8,156.32
  4. Step 4: Simplify right side
    13,188.24x = 148,480,748.68
  5. Step 5: Solve for x
    x = 148,480,748.68/13,188.24
  6. Step 6: Final answer
    x = 11,258.57

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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.