Home / 12,851.10-19,288.80-11,004.30

Finding the Fourth Proportional to 12,851.10, 19,288.80 and 11,004.30

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Solution

The fourth proportional to 12,851.10, 19,288.80 and 11,004.30 is: 16,516.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,851.10 : 19,288.80 = 11,004.30 : x
  2. Step 2: Convert to fraction form
    12,851.10/19,288.80 = 11,004.30/x
  3. Step 3: Cross multiply
    12,851.10x = 19,288.80 × 11,004.30
  4. Step 4: Simplify right side
    12,851.10x = 212,259,741.84
  5. Step 5: Solve for x
    x = 212,259,741.84/12,851.10
  6. Step 6: Final answer
    x = 16,516.85

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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.