Home / 10,391.20-15,584.57-2,994.28

Finding the Fourth Proportional to 10,391.20, 15,584.57 and 2,994.28

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Solution

The fourth proportional to 10,391.20, 15,584.57 and 2,994.28 is: 4,490.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,391.20 : 15,584.57 = 2,994.28 : x
  2. Step 2: Convert to fraction form
    10,391.20/15,584.57 = 2,994.28/x
  3. Step 3: Cross multiply
    10,391.20x = 15,584.57 × 2,994.28
  4. Step 4: Simplify right side
    10,391.20x = 46,664,473.37
  5. Step 5: Solve for x
    x = 46,664,473.37/10,391.20
  6. Step 6: Final answer
    x = 4,490.77

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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.