Home / 13,605.55-20,416.21-5,707.36

Finding the Fourth Proportional to 13,605.55, 20,416.21 and 5,707.36

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Solution

The fourth proportional to 13,605.55, 20,416.21 and 5,707.36 is: 8,564.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,605.55 : 20,416.21 = 5,707.36 : x
  2. Step 2: Convert to fraction form
    13,605.55/20,416.21 = 5,707.36/x
  3. Step 3: Cross multiply
    13,605.55x = 20,416.21 × 5,707.36
  4. Step 4: Simplify right side
    13,605.55x = 116,522,671.56
  5. Step 5: Solve for x
    x = 116,522,671.56/13,605.55
  6. Step 6: Final answer
    x = 8,564.35

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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.