Home / 11,433.92-15,779.40-6,397.83

Finding the Fourth Proportional to 11,433.92, 15,779.40 and 6,397.83

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Solution

The fourth proportional to 11,433.92, 15,779.40 and 6,397.83 is: 8,829.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,433.92 : 15,779.40 = 6,397.83 : x
  2. Step 2: Convert to fraction form
    11,433.92/15,779.40 = 6,397.83/x
  3. Step 3: Cross multiply
    11,433.92x = 15,779.40 × 6,397.83
  4. Step 4: Simplify right side
    11,433.92x = 100,953,918.70
  5. Step 5: Solve for x
    x = 100,953,918.70/11,433.92
  6. Step 6: Final answer
    x = 8,829.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.