Home / 13,128.08-19,682.09-6,558.87

Finding the Fourth Proportional to 13,128.08, 19,682.09 and 6,558.87

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Solution

The fourth proportional to 13,128.08, 19,682.09 and 6,558.87 is: 9,833.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,128.08 : 19,682.09 = 6,558.87 : x
  2. Step 2: Convert to fraction form
    13,128.08/19,682.09 = 6,558.87/x
  3. Step 3: Cross multiply
    13,128.08x = 19,682.09 × 6,558.87
  4. Step 4: Simplify right side
    13,128.08x = 129,092,335.25
  5. Step 5: Solve for x
    x = 129,092,335.25/13,128.08
  6. Step 6: Final answer
    x = 9,833.30

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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.