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Finding the Fourth Proportional to 8,303.88, 12,459.47 and 4,408.59

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Solution

The fourth proportional to 8,303.88, 12,459.47 and 4,408.59 is: 6,614.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,303.88 : 12,459.47 = 4,408.59 : x
  2. Step 2: Convert to fraction form
    8,303.88/12,459.47 = 4,408.59/x
  3. Step 3: Cross multiply
    8,303.88x = 12,459.47 × 4,408.59
  4. Step 4: Simplify right side
    8,303.88x = 54,928,672.80
  5. Step 5: Solve for x
    x = 54,928,672.80/8,303.88
  6. Step 6: Final answer
    x = 6,614.82

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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.