Home / 11,725.05-16,182.12-6,688.13

Finding the Fourth Proportional to 11,725.05, 16,182.12 and 6,688.13

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Solution

The fourth proportional to 11,725.05, 16,182.12 and 6,688.13 is: 9,230.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,725.05 : 16,182.12 = 6,688.13 : x
  2. Step 2: Convert to fraction form
    11,725.05/16,182.12 = 6,688.13/x
  3. Step 3: Cross multiply
    11,725.05x = 16,182.12 × 6,688.13
  4. Step 4: Simplify right side
    11,725.05x = 108,228,041.33
  5. Step 5: Solve for x
    x = 108,228,041.33/11,725.05
  6. Step 6: Final answer
    x = 9,230.50

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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.