Home / 9,782.64-14,669.73-3,117.42

Finding the Fourth Proportional to 9,782.64, 14,669.73 and 3,117.42

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Solution

The fourth proportional to 9,782.64, 14,669.73 and 3,117.42 is: 4,674.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,782.64 : 14,669.73 = 3,117.42 : x
  2. Step 2: Convert to fraction form
    9,782.64/14,669.73 = 3,117.42/x
  3. Step 3: Cross multiply
    9,782.64x = 14,669.73 × 3,117.42
  4. Step 4: Simplify right side
    9,782.64x = 45,731,709.70
  5. Step 5: Solve for x
    x = 45,731,709.70/9,782.64
  6. Step 6: Final answer
    x = 4,674.78

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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.