Home / 13,651.76-20,473.60-5,858.72

Finding the Fourth Proportional to 13,651.76, 20,473.60 and 5,858.72

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Solution

The fourth proportional to 13,651.76, 20,473.60 and 5,858.72 is: 8,786.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,651.76 : 20,473.60 = 5,858.72 : x
  2. Step 2: Convert to fraction form
    13,651.76/20,473.60 = 5,858.72/x
  3. Step 3: Cross multiply
    13,651.76x = 20,473.60 × 5,858.72
  4. Step 4: Simplify right side
    13,651.76x = 119,949,089.79
  5. Step 5: Solve for x
    x = 119,949,089.79/13,651.76
  6. Step 6: Final answer
    x = 8,786.35

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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.