Home / 19,790.13-29,686.11-11,018.44

Finding the Fourth Proportional to 19,790.13, 29,686.11 and 11,018.44

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Solution

The fourth proportional to 19,790.13, 29,686.11 and 11,018.44 is: 16,528.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,790.13 : 29,686.11 = 11,018.44 : x
  2. Step 2: Convert to fraction form
    19,790.13/29,686.11 = 11,018.44/x
  3. Step 3: Cross multiply
    19,790.13x = 29,686.11 × 11,018.44
  4. Step 4: Simplify right side
    19,790.13x = 327,094,418.35
  5. Step 5: Solve for x
    x = 327,094,418.35/19,790.13
  6. Step 6: Final answer
    x = 16,528.16

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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.