Home / 13,416.03-20,128.05-6,404.94

Finding the Fourth Proportional to 13,416.03, 20,128.05 and 6,404.94

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Solution

The fourth proportional to 13,416.03, 20,128.05 and 6,404.94 is: 9,609.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,416.03 : 20,128.05 = 6,404.94 : x
  2. Step 2: Convert to fraction form
    13,416.03/20,128.05 = 6,404.94/x
  3. Step 3: Cross multiply
    13,416.03x = 20,128.05 × 6,404.94
  4. Step 4: Simplify right side
    13,416.03x = 128,918,952.57
  5. Step 5: Solve for x
    x = 128,918,952.57/13,416.03
  6. Step 6: Final answer
    x = 9,609.32

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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.