Home / 13,588.16-20,378.54-3,725.09

Finding the Fourth Proportional to 13,588.16, 20,378.54 and 3,725.09

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Solution

The fourth proportional to 13,588.16, 20,378.54 and 3,725.09 is: 5,586.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,588.16 : 20,378.54 = 3,725.09 : x
  2. Step 2: Convert to fraction form
    13,588.16/20,378.54 = 3,725.09/x
  3. Step 3: Cross multiply
    13,588.16x = 20,378.54 × 3,725.09
  4. Step 4: Simplify right side
    13,588.16x = 75,911,858.45
  5. Step 5: Solve for x
    x = 75,911,858.45/13,588.16
  6. Step 6: Final answer
    x = 5,586.62

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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.