Home / 12,628.96-18,943.68-4,310.88

Finding the Fourth Proportional to 12,628.96, 18,943.68 and 4,310.88

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Solution

The fourth proportional to 12,628.96, 18,943.68 and 4,310.88 is: 6,466.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,628.96 : 18,943.68 = 4,310.88 : x
  2. Step 2: Convert to fraction form
    12,628.96/18,943.68 = 4,310.88/x
  3. Step 3: Cross multiply
    12,628.96x = 18,943.68 × 4,310.88
  4. Step 4: Simplify right side
    12,628.96x = 81,663,931.24
  5. Step 5: Solve for x
    x = 81,663,931.24/12,628.96
  6. Step 6: Final answer
    x = 6,466.40

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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.