Home / 9,329.30-12,872.49-5,790.41

Finding the Fourth Proportional to 9,329.30, 12,872.49 and 5,790.41

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Solution

The fourth proportional to 9,329.30, 12,872.49 and 5,790.41 is: 7,989.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,329.30 : 12,872.49 = 5,790.41 : x
  2. Step 2: Convert to fraction form
    9,329.30/12,872.49 = 5,790.41/x
  3. Step 3: Cross multiply
    9,329.30x = 12,872.49 × 5,790.41
  4. Step 4: Simplify right side
    9,329.30x = 74,536,994.82
  5. Step 5: Solve for x
    x = 74,536,994.82/9,329.30
  6. Step 6: Final answer
    x = 7,989.56

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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.