Home / 9,327.04-12,872.48-5,790.78

Finding the Fourth Proportional to 9,327.04, 12,872.48 and 5,790.78

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Solution

The fourth proportional to 9,327.04, 12,872.48 and 5,790.78 is: 7,992.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,327.04 : 12,872.48 = 5,790.78 : x
  2. Step 2: Convert to fraction form
    9,327.04/12,872.48 = 5,790.78/x
  3. Step 3: Cross multiply
    9,327.04x = 12,872.48 × 5,790.78
  4. Step 4: Simplify right side
    9,327.04x = 74,541,699.73
  5. Step 5: Solve for x
    x = 74,541,699.73/9,327.04
  6. Step 6: Final answer
    x = 7,992.00

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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.