Home / 14,804.30-20,429.69-8,089.78

Finding the Fourth Proportional to 14,804.30, 20,429.69 and 8,089.78

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Solution

The fourth proportional to 14,804.30, 20,429.69 and 8,089.78 is: 11,163.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,804.30 : 20,429.69 = 8,089.78 : x
  2. Step 2: Convert to fraction form
    14,804.30/20,429.69 = 8,089.78/x
  3. Step 3: Cross multiply
    14,804.30x = 20,429.69 × 8,089.78
  4. Step 4: Simplify right side
    14,804.30x = 165,271,697.57
  5. Step 5: Solve for x
    x = 165,271,697.57/14,804.30
  6. Step 6: Final answer
    x = 11,163.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.