Home / 12,406.76-18,609.60-6,862.85

Finding the Fourth Proportional to 12,406.76, 18,609.60 and 6,862.85

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Solution

The fourth proportional to 12,406.76, 18,609.60 and 6,862.85 is: 10,293.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,406.76 : 18,609.60 = 6,862.85 : x
  2. Step 2: Convert to fraction form
    12,406.76/18,609.60 = 6,862.85/x
  3. Step 3: Cross multiply
    12,406.76x = 18,609.60 × 6,862.85
  4. Step 4: Simplify right side
    12,406.76x = 127,714,893.36
  5. Step 5: Solve for x
    x = 127,714,893.36/12,406.76
  6. Step 6: Final answer
    x = 10,293.98

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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.