Home / 7,371.12-10,171.84-4,013.92

Finding the Fourth Proportional to 7,371.12, 10,171.84 and 4,013.92

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Solution

The fourth proportional to 7,371.12, 10,171.84 and 4,013.92 is: 5,539.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,371.12 : 10,171.84 = 4,013.92 : x
  2. Step 2: Convert to fraction form
    7,371.12/10,171.84 = 4,013.92/x
  3. Step 3: Cross multiply
    7,371.12x = 10,171.84 × 4,013.92
  4. Step 4: Simplify right side
    7,371.12x = 40,828,966.24
  5. Step 5: Solve for x
    x = 40,828,966.24/7,371.12
  6. Step 6: Final answer
    x = 5,539.05

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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.