Home / 8,946.40-12,346.24-5,408.96

Finding the Fourth Proportional to 8,946.40, 12,346.24 and 5,408.96

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Solution

The fourth proportional to 8,946.40, 12,346.24 and 5,408.96 is: 7,464.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,946.40 : 12,346.24 = 5,408.96 : x
  2. Step 2: Convert to fraction form
    8,946.40/12,346.24 = 5,408.96/x
  3. Step 3: Cross multiply
    8,946.40x = 12,346.24 × 5,408.96
  4. Step 4: Simplify right side
    8,946.40x = 66,780,318.31
  5. Step 5: Solve for x
    x = 66,780,318.31/8,946.40
  6. Step 6: Final answer
    x = 7,464.49

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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.