Home / 10,140.97-13,994.58-5,664.91

Finding the Fourth Proportional to 10,140.97, 13,994.58 and 5,664.91

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Solution

The fourth proportional to 10,140.97, 13,994.58 and 5,664.91 is: 7,817.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,140.97 : 13,994.58 = 5,664.91 : x
  2. Step 2: Convert to fraction form
    10,140.97/13,994.58 = 5,664.91/x
  3. Step 3: Cross multiply
    10,140.97x = 13,994.58 × 5,664.91
  4. Step 4: Simplify right side
    10,140.97x = 79,278,022.44
  5. Step 5: Solve for x
    x = 79,278,022.44/10,140.97
  6. Step 6: Final answer
    x = 7,817.60

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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.