Home / 13,606.86-20,418.16-5,708.67

Finding the Fourth Proportional to 13,606.86, 20,418.16 and 5,708.67

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Solution

The fourth proportional to 13,606.86, 20,418.16 and 5,708.67 is: 8,566.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,606.86 : 20,418.16 = 5,708.67 : x
  2. Step 2: Convert to fraction form
    13,606.86/20,418.16 = 5,708.67/x
  3. Step 3: Cross multiply
    13,606.86x = 20,418.16 × 5,708.67
  4. Step 4: Simplify right side
    13,606.86x = 116,560,537.45
  5. Step 5: Solve for x
    x = 116,560,537.45/13,606.86
  6. Step 6: Final answer
    x = 8,566.31

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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.