Home / 13,725.78-20,588.67-3,337.50

Finding the Fourth Proportional to 13,725.78, 20,588.67 and 3,337.50

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Solution

The fourth proportional to 13,725.78, 20,588.67 and 3,337.50 is: 5,006.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,725.78 : 20,588.67 = 3,337.50 : x
  2. Step 2: Convert to fraction form
    13,725.78/20,588.67 = 3,337.50/x
  3. Step 3: Cross multiply
    13,725.78x = 20,588.67 × 3,337.50
  4. Step 4: Simplify right side
    13,725.78x = 68,714,686.13
  5. Step 5: Solve for x
    x = 68,714,686.13/13,725.78
  6. Step 6: Final answer
    x = 5,006.25

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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.