Home / 8,418.88-12,628.64-4,310.08

Finding the Fourth Proportional to 8,418.88, 12,628.64 and 4,310.08

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Solution

The fourth proportional to 8,418.88, 12,628.64 and 4,310.08 is: 6,465.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.88 : 12,628.64 = 4,310.08 : x
  2. Step 2: Convert to fraction form
    8,418.88/12,628.64 = 4,310.08/x
  3. Step 3: Cross multiply
    8,418.88x = 12,628.64 × 4,310.08
  4. Step 4: Simplify right side
    8,418.88x = 54,430,448.69
  5. Step 5: Solve for x
    x = 54,430,448.69/8,418.88
  6. Step 6: Final answer
    x = 6,465.28

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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.