Home / 11,330.55-16,991.78-4,308.70

Finding the Fourth Proportional to 11,330.55, 16,991.78 and 4,308.70

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Solution

The fourth proportional to 11,330.55, 16,991.78 and 4,308.70 is: 6,461.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,330.55 : 16,991.78 = 4,308.70 : x
  2. Step 2: Convert to fraction form
    11,330.55/16,991.78 = 4,308.70/x
  3. Step 3: Cross multiply
    11,330.55x = 16,991.78 × 4,308.70
  4. Step 4: Simplify right side
    11,330.55x = 73,212,482.49
  5. Step 5: Solve for x
    x = 73,212,482.49/11,330.55
  6. Step 6: Final answer
    x = 6,461.51

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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.