Home / 11,931.84-17,928-7,551.36

Finding the Fourth Proportional to 11,931.84, 17,928 and 7,551.36

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Solution

The fourth proportional to 11,931.84, 17,928 and 7,551.36 is: 11,346.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,931.84 : 17,928 = 7,551.36 : x
  2. Step 2: Convert to fraction form
    11,931.84/17,928 = 7,551.36/x
  3. Step 3: Cross multiply
    11,931.84x = 17,928 × 7,551.36
  4. Step 4: Simplify right side
    11,931.84x = 135,380,782.08
  5. Step 5: Solve for x
    x = 135,380,782.08/11,931.84
  6. Step 6: Final answer
    x = 11,346.18

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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.