Home / 9,786.75-14,680.14-5,412.75

Finding the Fourth Proportional to 9,786.75, 14,680.14 and 5,412.75

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Solution

The fourth proportional to 9,786.75, 14,680.14 and 5,412.75 is: 8,119.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,786.75 : 14,680.14 = 5,412.75 : x
  2. Step 2: Convert to fraction form
    9,786.75/14,680.14 = 5,412.75/x
  3. Step 3: Cross multiply
    9,786.75x = 14,680.14 × 5,412.75
  4. Step 4: Simplify right side
    9,786.75x = 79,459,927.79
  5. Step 5: Solve for x
    x = 79,459,927.79/9,786.75
  6. Step 6: Final answer
    x = 8,119.13

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.