Home / 13,673.84-20,510.75-3,285.59

Finding the Fourth Proportional to 13,673.84, 20,510.75 and 3,285.59

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Solution

The fourth proportional to 13,673.84, 20,510.75 and 3,285.59 is: 4,928.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,673.84 : 20,510.75 = 3,285.59 : x
  2. Step 2: Convert to fraction form
    13,673.84/20,510.75 = 3,285.59/x
  3. Step 3: Cross multiply
    13,673.84x = 20,510.75 × 3,285.59
  4. Step 4: Simplify right side
    13,673.84x = 67,389,915.09
  5. Step 5: Solve for x
    x = 67,389,915.09/13,673.84
  6. Step 6: Final answer
    x = 4,928.38

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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.