Home / 8,408.40-12,612.58-4,662.47

Finding the Fourth Proportional to 8,408.40, 12,612.58 and 4,662.47

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Solution

The fourth proportional to 8,408.40, 12,612.58 and 4,662.47 is: 6,993.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,408.40 : 12,612.58 = 4,662.47 : x
  2. Step 2: Convert to fraction form
    8,408.40/12,612.58 = 4,662.47/x
  3. Step 3: Cross multiply
    8,408.40x = 12,612.58 × 4,662.47
  4. Step 4: Simplify right side
    8,408.40x = 58,805,718.64
  5. Step 5: Solve for x
    x = 58,805,718.64/8,408.40
  6. Step 6: Final answer
    x = 6,993.69

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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.