Home / 11,781.58-16,260.90-6,749.16

Finding the Fourth Proportional to 11,781.58, 16,260.90 and 6,749.16

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Solution

The fourth proportional to 11,781.58, 16,260.90 and 6,749.16 is: 9,315.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,781.58 : 16,260.90 = 6,749.16 : x
  2. Step 2: Convert to fraction form
    11,781.58/16,260.90 = 6,749.16/x
  3. Step 3: Cross multiply
    11,781.58x = 16,260.90 × 6,749.16
  4. Step 4: Simplify right side
    11,781.58x = 109,747,415.84
  5. Step 5: Solve for x
    x = 109,747,415.84/11,781.58
  6. Step 6: Final answer
    x = 9,315.17

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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.