Home / 13,132.96-18,126.93-7,471.03

Finding the Fourth Proportional to 13,132.96, 18,126.93 and 7,471.03

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Solution

The fourth proportional to 13,132.96, 18,126.93 and 7,471.03 is: 10,311.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,132.96 : 18,126.93 = 7,471.03 : x
  2. Step 2: Convert to fraction form
    13,132.96/18,126.93 = 7,471.03/x
  3. Step 3: Cross multiply
    13,132.96x = 18,126.93 × 7,471.03
  4. Step 4: Simplify right side
    13,132.96x = 135,426,837.84
  5. Step 5: Solve for x
    x = 135,426,837.84/13,132.96
  6. Step 6: Final answer
    x = 10,311.98

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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.