Home / 11,953.20-16,494.52-6,647.60

Finding the Fourth Proportional to 11,953.20, 16,494.52 and 6,647.60

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Solution

The fourth proportional to 11,953.20, 16,494.52 and 6,647.60 is: 9,173.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,953.20 : 16,494.52 = 6,647.60 : x
  2. Step 2: Convert to fraction form
    11,953.20/16,494.52 = 6,647.60/x
  3. Step 3: Cross multiply
    11,953.20x = 16,494.52 × 6,647.60
  4. Step 4: Simplify right side
    11,953.20x = 109,648,971.15
  5. Step 5: Solve for x
    x = 109,648,971.15/11,953.20
  6. Step 6: Final answer
    x = 9,173.19

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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.