Home / 19,862.21-29,786.64-8,012.93

Finding the Fourth Proportional to 19,862.21, 29,786.64 and 8,012.93

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Solution

The fourth proportional to 19,862.21, 29,786.64 and 8,012.93 is: 12,016.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,862.21 : 29,786.64 = 8,012.93 : x
  2. Step 2: Convert to fraction form
    19,862.21/29,786.64 = 8,012.93/x
  3. Step 3: Cross multiply
    19,862.21x = 29,786.64 × 8,012.93
  4. Step 4: Simplify right side
    19,862.21x = 238,678,082.27
  5. Step 5: Solve for x
    x = 238,678,082.27/19,862.21
  6. Step 6: Final answer
    x = 12,016.69

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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.