Home / 8,257.32-12,390.12-4,362.12

Finding the Fourth Proportional to 8,257.32, 12,390.12 and 4,362.12

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Solution

The fourth proportional to 8,257.32, 12,390.12 and 4,362.12 is: 6,545.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,257.32 : 12,390.12 = 4,362.12 : x
  2. Step 2: Convert to fraction form
    8,257.32/12,390.12 = 4,362.12/x
  3. Step 3: Cross multiply
    8,257.32x = 12,390.12 × 4,362.12
  4. Step 4: Simplify right side
    8,257.32x = 54,047,190.25
  5. Step 5: Solve for x
    x = 54,047,190.25/8,257.32
  6. Step 6: Final answer
    x = 6,545.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.