Home / 13,203.64-18,224.22-8,487.28

Finding the Fourth Proportional to 13,203.64, 18,224.22 and 8,487.28

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Solution

The fourth proportional to 13,203.64, 18,224.22 and 8,487.28 is: 11,714.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,203.64 : 18,224.22 = 8,487.28 : x
  2. Step 2: Convert to fraction form
    13,203.64/18,224.22 = 8,487.28/x
  3. Step 3: Cross multiply
    13,203.64x = 18,224.22 × 8,487.28
  4. Step 4: Simplify right side
    13,203.64x = 154,674,057.92
  5. Step 5: Solve for x
    x = 154,674,057.92/13,203.64
  6. Step 6: Final answer
    x = 11,714.50

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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.