Home / 13,052.72-18,012.84-7,387.76

Finding the Fourth Proportional to 13,052.72, 18,012.84 and 7,387.76

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Solution

The fourth proportional to 13,052.72, 18,012.84 and 7,387.76 is: 10,195.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,052.72 : 18,012.84 = 7,387.76 : x
  2. Step 2: Convert to fraction form
    13,052.72/18,012.84 = 7,387.76/x
  3. Step 3: Cross multiply
    13,052.72x = 18,012.84 × 7,387.76
  4. Step 4: Simplify right side
    13,052.72x = 133,074,538.84
  5. Step 5: Solve for x
    x = 133,074,538.84/13,052.72
  6. Step 6: Final answer
    x = 10,195.16

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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.