Home / 8,447.28-12,670.91-2,603.88

Finding the Fourth Proportional to 8,447.28, 12,670.91 and 2,603.88

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Solution

The fourth proportional to 8,447.28, 12,670.91 and 2,603.88 is: 3,905.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,447.28 : 12,670.91 = 2,603.88 : x
  2. Step 2: Convert to fraction form
    8,447.28/12,670.91 = 2,603.88/x
  3. Step 3: Cross multiply
    8,447.28x = 12,670.91 × 2,603.88
  4. Step 4: Simplify right side
    8,447.28x = 32,993,525.88
  5. Step 5: Solve for x
    x = 32,993,525.88/8,447.28
  6. Step 6: Final answer
    x = 3,905.82

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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.