Home / 13,605.86-20,416.66-5,707.67

Finding the Fourth Proportional to 13,605.86, 20,416.66 and 5,707.67

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Solution

The fourth proportional to 13,605.86, 20,416.66 and 5,707.67 is: 8,564.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,605.86 : 20,416.66 = 5,707.67 : x
  2. Step 2: Convert to fraction form
    13,605.86/20,416.66 = 5,707.67/x
  3. Step 3: Cross multiply
    13,605.86x = 20,416.66 × 5,707.67
  4. Step 4: Simplify right side
    13,605.86x = 116,531,441.43
  5. Step 5: Solve for x
    x = 116,531,441.43/13,605.86
  6. Step 6: Final answer
    x = 8,564.80

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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.