Home / 7,973.86-11,961.40-2,427.68

Finding the Fourth Proportional to 7,973.86, 11,961.40 and 2,427.68

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Solution

The fourth proportional to 7,973.86, 11,961.40 and 2,427.68 is: 3,641.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,973.86 : 11,961.40 = 2,427.68 : x
  2. Step 2: Convert to fraction form
    7,973.86/11,961.40 = 2,427.68/x
  3. Step 3: Cross multiply
    7,973.86x = 11,961.40 × 2,427.68
  4. Step 4: Simplify right side
    7,973.86x = 29,038,385.68
  5. Step 5: Solve for x
    x = 29,038,385.68/7,973.86
  6. Step 6: Final answer
    x = 3,641.70

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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.