Home / 45,865.84-68,798.82-12,586.36

Finding the Fourth Proportional to 45,865.84, 68,798.82 and 12,586.36

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Solution

The fourth proportional to 45,865.84, 68,798.82 and 12,586.36 is: 18,879.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,865.84 : 68,798.82 = 12,586.36 : x
  2. Step 2: Convert to fraction form
    45,865.84/68,798.82 = 12,586.36/x
  3. Step 3: Cross multiply
    45,865.84x = 68,798.82 × 12,586.36
  4. Step 4: Simplify right side
    45,865.84x = 865,926,716.10
  5. Step 5: Solve for x
    x = 865,926,716.10/45,865.84
  6. Step 6: Final answer
    x = 18,879.56

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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.