Home / 11,731.77-16,188.35-9,347.79

Finding the Fourth Proportional to 11,731.77, 16,188.35 and 9,347.79

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Solution

The fourth proportional to 11,731.77, 16,188.35 and 9,347.79 is: 12,898.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,731.77 : 16,188.35 = 9,347.79 : x
  2. Step 2: Convert to fraction form
    11,731.77/16,188.35 = 9,347.79/x
  3. Step 3: Cross multiply
    11,731.77x = 16,188.35 × 9,347.79
  4. Step 4: Simplify right side
    11,731.77x = 151,325,296.25
  5. Step 5: Solve for x
    x = 151,325,296.25/11,731.77
  6. Step 6: Final answer
    x = 12,898.76

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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.