Home / 11,789.12-16,270.32-6,484.40

Finding the Fourth Proportional to 11,789.12, 16,270.32 and 6,484.40

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Solution

The fourth proportional to 11,789.12, 16,270.32 and 6,484.40 is: 8,949.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,789.12 : 16,270.32 = 6,484.40 : x
  2. Step 2: Convert to fraction form
    11,789.12/16,270.32 = 6,484.40/x
  3. Step 3: Cross multiply
    11,789.12x = 16,270.32 × 6,484.40
  4. Step 4: Simplify right side
    11,789.12x = 105,503,263.01
  5. Step 5: Solve for x
    x = 105,503,263.01/11,789.12
  6. Step 6: Final answer
    x = 8,949.21

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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.