Home / 11,705.10-16,153.29-6,399.91

Finding the Fourth Proportional to 11,705.10, 16,153.29 and 6,399.91

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Solution

The fourth proportional to 11,705.10, 16,153.29 and 6,399.91 is: 8,832.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,705.10 : 16,153.29 = 6,399.91 : x
  2. Step 2: Convert to fraction form
    11,705.10/16,153.29 = 6,399.91/x
  3. Step 3: Cross multiply
    11,705.10x = 16,153.29 × 6,399.91
  4. Step 4: Simplify right side
    11,705.10x = 103,379,602.20
  5. Step 5: Solve for x
    x = 103,379,602.20/11,705.10
  6. Step 6: Final answer
    x = 8,832.01

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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.