Home / 11,783.35-16,260.35-6,478.17

Finding the Fourth Proportional to 11,783.35, 16,260.35 and 6,478.17

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Solution

The fourth proportional to 11,783.35, 16,260.35 and 6,478.17 is: 8,939.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,783.35 : 16,260.35 = 6,478.17 : x
  2. Step 2: Convert to fraction form
    11,783.35/16,260.35 = 6,478.17/x
  3. Step 3: Cross multiply
    11,783.35x = 16,260.35 × 6,478.17
  4. Step 4: Simplify right side
    11,783.35x = 105,337,197.87
  5. Step 5: Solve for x
    x = 105,337,197.87/11,783.35
  6. Step 6: Final answer
    x = 8,939.49

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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.