Home / 11,921.52-16,459.68-10,658.48

Finding the Fourth Proportional to 11,921.52, 16,459.68 and 10,658.48

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Solution

The fourth proportional to 11,921.52, 16,459.68 and 10,658.48 is: 14,715.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,921.52 : 16,459.68 = 10,658.48 : x
  2. Step 2: Convert to fraction form
    11,921.52/16,459.68 = 10,658.48/x
  3. Step 3: Cross multiply
    11,921.52x = 16,459.68 × 10,658.48
  4. Step 4: Simplify right side
    11,921.52x = 175,435,170.09
  5. Step 5: Solve for x
    x = 175,435,170.09/11,921.52
  6. Step 6: Final answer
    x = 14,715.84

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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.