Home / 11,765.20-16,236.99-6,461.05

Finding the Fourth Proportional to 11,765.20, 16,236.99 and 6,461.05

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Solution

The fourth proportional to 11,765.20, 16,236.99 and 6,461.05 is: 8,916.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,765.20 : 16,236.99 = 6,461.05 : x
  2. Step 2: Convert to fraction form
    11,765.20/16,236.99 = 6,461.05/x
  3. Step 3: Cross multiply
    11,765.20x = 16,236.99 × 6,461.05
  4. Step 4: Simplify right side
    11,765.20x = 104,908,004.24
  5. Step 5: Solve for x
    x = 104,908,004.24/11,765.20
  6. Step 6: Final answer
    x = 8,916.81

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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.