Home / 11,725.61-16,182.89-6,688.68

Finding the Fourth Proportional to 11,725.61, 16,182.89 and 6,688.68

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Solution

The fourth proportional to 11,725.61, 16,182.89 and 6,688.68 is: 9,231.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,725.61 : 16,182.89 = 6,688.68 : x
  2. Step 2: Convert to fraction form
    11,725.61/16,182.89 = 6,688.68/x
  3. Step 3: Cross multiply
    11,725.61x = 16,182.89 × 6,688.68
  4. Step 4: Simplify right side
    11,725.61x = 108,242,172.69
  5. Step 5: Solve for x
    x = 108,242,172.69/11,725.61
  6. Step 6: Final answer
    x = 9,231.26

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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.