Home / 11,397.88-15,729.37-6,362.08

Finding the Fourth Proportional to 11,397.88, 15,729.37 and 6,362.08

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Solution

The fourth proportional to 11,397.88, 15,729.37 and 6,362.08 is: 8,779.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,397.88 : 15,729.37 = 6,362.08 : x
  2. Step 2: Convert to fraction form
    11,397.88/15,729.37 = 6,362.08/x
  3. Step 3: Cross multiply
    11,397.88x = 15,729.37 × 6,362.08
  4. Step 4: Simplify right side
    11,397.88x = 100,071,490.85
  5. Step 5: Solve for x
    x = 100,071,490.85/11,397.88
  6. Step 6: Final answer
    x = 8,779.83

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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.