Home / 19,857.63-29,790.75-5,818.83

Finding the Fourth Proportional to 19,857.63, 29,790.75 and 5,818.83

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Solution

The fourth proportional to 19,857.63, 29,790.75 and 5,818.83 is: 8,729.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,857.63 : 29,790.75 = 5,818.83 : x
  2. Step 2: Convert to fraction form
    19,857.63/29,790.75 = 5,818.83/x
  3. Step 3: Cross multiply
    19,857.63x = 29,790.75 × 5,818.83
  4. Step 4: Simplify right side
    19,857.63x = 173,347,309.82
  5. Step 5: Solve for x
    x = 173,347,309.82/19,857.63
  6. Step 6: Final answer
    x = 8,729.51

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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.