Home / 13,548.96-18,694.56-9,079.20

Finding the Fourth Proportional to 13,548.96, 18,694.56 and 9,079.20

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Solution

The fourth proportional to 13,548.96, 18,694.56 and 9,079.20 is: 12,527.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,548.96 : 18,694.56 = 9,079.20 : x
  2. Step 2: Convert to fraction form
    13,548.96/18,694.56 = 9,079.20/x
  3. Step 3: Cross multiply
    13,548.96x = 18,694.56 × 9,079.20
  4. Step 4: Simplify right side
    13,548.96x = 169,731,649.15
  5. Step 5: Solve for x
    x = 169,731,649.15/13,548.96
  6. Step 6: Final answer
    x = 12,527.28

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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.