Home / 12,005.30-16,568.42-6,628.70

Finding the Fourth Proportional to 12,005.30, 16,568.42 and 6,628.70

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Solution

The fourth proportional to 12,005.30, 16,568.42 and 6,628.70 is: 9,148.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,005.30 : 16,568.42 = 6,628.70 : x
  2. Step 2: Convert to fraction form
    12,005.30/16,568.42 = 6,628.70/x
  3. Step 3: Cross multiply
    12,005.30x = 16,568.42 × 6,628.70
  4. Step 4: Simplify right side
    12,005.30x = 109,826,969.67
  5. Step 5: Solve for x
    x = 109,826,969.67/12,005.30
  6. Step 6: Final answer
    x = 9,148.21

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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.