Home / 8,403.05-12,612.36-4,245.98

Finding the Fourth Proportional to 8,403.05, 12,612.36 and 4,245.98

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Solution

The fourth proportional to 8,403.05, 12,612.36 and 4,245.98 is: 6,372.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,403.05 : 12,612.36 = 4,245.98 : x
  2. Step 2: Convert to fraction form
    8,403.05/12,612.36 = 4,245.98/x
  3. Step 3: Cross multiply
    8,403.05x = 12,612.36 × 4,245.98
  4. Step 4: Simplify right side
    8,403.05x = 53,551,828.31
  5. Step 5: Solve for x
    x = 53,551,828.31/8,403.05
  6. Step 6: Final answer
    x = 6,372.90

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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.