Home / 10,141.19-13,994.87-5,665.11

Finding the Fourth Proportional to 10,141.19, 13,994.87 and 5,665.11

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Solution

The fourth proportional to 10,141.19, 13,994.87 and 5,665.11 is: 7,817.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,141.19 : 13,994.87 = 5,665.11 : x
  2. Step 2: Convert to fraction form
    10,141.19/13,994.87 = 5,665.11/x
  3. Step 3: Cross multiply
    10,141.19x = 13,994.87 × 5,665.11
  4. Step 4: Simplify right side
    10,141.19x = 79,282,449.66
  5. Step 5: Solve for x
    x = 79,282,449.66/10,141.19
  6. Step 6: Final answer
    x = 7,817.87

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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.