Home / 13,651.47-20,477.22-3,790.77

Finding the Fourth Proportional to 13,651.47, 20,477.22 and 3,790.77

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Solution

The fourth proportional to 13,651.47, 20,477.22 and 3,790.77 is: 5,686.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,651.47 : 20,477.22 = 3,790.77 : x
  2. Step 2: Convert to fraction form
    13,651.47/20,477.22 = 3,790.77/x
  3. Step 3: Cross multiply
    13,651.47x = 20,477.22 × 3,790.77
  4. Step 4: Simplify right side
    13,651.47x = 77,624,431.26
  5. Step 5: Solve for x
    x = 77,624,431.26/13,651.47
  6. Step 6: Final answer
    x = 5,686.16

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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.