Home / 12,628.84-18,937.50-8,179.24

Finding the Fourth Proportional to 12,628.84, 18,937.50 and 8,179.24

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Solution

The fourth proportional to 12,628.84, 18,937.50 and 8,179.24 is: 12,265.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,628.84 : 18,937.50 = 8,179.24 : x
  2. Step 2: Convert to fraction form
    12,628.84/18,937.50 = 8,179.24/x
  3. Step 3: Cross multiply
    12,628.84x = 18,937.50 × 8,179.24
  4. Step 4: Simplify right side
    12,628.84x = 154,894,357.50
  5. Step 5: Solve for x
    x = 154,894,357.50/12,628.84
  6. Step 6: Final answer
    x = 12,265.13

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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.