Home / 6,929.12-10,393.45-1,999.26

Finding the Fourth Proportional to 6,929.12, 10,393.45 and 1,999.26

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Solution

The fourth proportional to 6,929.12, 10,393.45 and 1,999.26 is: 2,998.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,929.12 : 10,393.45 = 1,999.26 : x
  2. Step 2: Convert to fraction form
    6,929.12/10,393.45 = 1,999.26/x
  3. Step 3: Cross multiply
    6,929.12x = 10,393.45 × 1,999.26
  4. Step 4: Simplify right side
    6,929.12x = 20,779,174.62
  5. Step 5: Solve for x
    x = 20,779,174.62/6,929.12
  6. Step 6: Final answer
    x = 2,998.82

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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.