Home / 12,487.55-18,715.68-6,249.33

Finding the Fourth Proportional to 12,487.55, 18,715.68 and 6,249.33

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Solution

The fourth proportional to 12,487.55, 18,715.68 and 6,249.33 is: 9,366.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,487.55 : 18,715.68 = 6,249.33 : x
  2. Step 2: Convert to fraction form
    12,487.55/18,715.68 = 6,249.33/x
  3. Step 3: Cross multiply
    12,487.55x = 18,715.68 × 6,249.33
  4. Step 4: Simplify right side
    12,487.55x = 116,960,460.49
  5. Step 5: Solve for x
    x = 116,960,460.49/12,487.55
  6. Step 6: Final answer
    x = 9,366.17

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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.