Home / 13,546.24-18,688.32-8,236.80

Finding the Fourth Proportional to 13,546.24, 18,688.32 and 8,236.80

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Solution

The fourth proportional to 13,546.24, 18,688.32 and 8,236.80 is: 11,363.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,546.24 : 18,688.32 = 8,236.80 : x
  2. Step 2: Convert to fraction form
    13,546.24/18,688.32 = 8,236.80/x
  3. Step 3: Cross multiply
    13,546.24x = 18,688.32 × 8,236.80
  4. Step 4: Simplify right side
    13,546.24x = 153,931,954.18
  5. Step 5: Solve for x
    x = 153,931,954.18/13,546.24
  6. Step 6: Final answer
    x = 11,363.45

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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.