Home / 11,783.60-16,262.23-6,478.50

Finding the Fourth Proportional to 11,783.60, 16,262.23 and 6,478.50

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Solution

The fourth proportional to 11,783.60, 16,262.23 and 6,478.50 is: 8,940.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,783.60 : 16,262.23 = 6,478.50 : x
  2. Step 2: Convert to fraction form
    11,783.60/16,262.23 = 6,478.50/x
  3. Step 3: Cross multiply
    11,783.60x = 16,262.23 × 6,478.50
  4. Step 4: Simplify right side
    11,783.60x = 105,354,857.06
  5. Step 5: Solve for x
    x = 105,354,857.06/11,783.60
  6. Step 6: Final answer
    x = 8,940.81

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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.