Home / 11,953.10-16,495.20-6,647.90

Finding the Fourth Proportional to 11,953.10, 16,495.20 and 6,647.90

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Solution

The fourth proportional to 11,953.10, 16,495.20 and 6,647.90 is: 9,174.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,953.10 : 16,495.20 = 6,647.90 : x
  2. Step 2: Convert to fraction form
    11,953.10/16,495.20 = 6,647.90/x
  3. Step 3: Cross multiply
    11,953.10x = 16,495.20 × 6,647.90
  4. Step 4: Simplify right side
    11,953.10x = 109,658,440.08
  5. Step 5: Solve for x
    x = 109,658,440.08/11,953.10
  6. Step 6: Final answer
    x = 9,174.06

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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.