Home / 10,136.82-13,988.82-5,660.57

Finding the Fourth Proportional to 10,136.82, 13,988.82 and 5,660.57

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Solution

The fourth proportional to 10,136.82, 13,988.82 and 5,660.57 is: 7,811.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,136.82 : 13,988.82 = 5,660.57 : x
  2. Step 2: Convert to fraction form
    10,136.82/13,988.82 = 5,660.57/x
  3. Step 3: Cross multiply
    10,136.82x = 13,988.82 × 5,660.57
  4. Step 4: Simplify right side
    10,136.82x = 79,184,624.88
  5. Step 5: Solve for x
    x = 79,184,624.88/10,136.82
  6. Step 6: Final answer
    x = 7,811.58

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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.